A simple python library for ICD-10-CM codes
- Release notes
- Introduction
- Setup
- The format of the codes
- About the file "Instructional Notations.md"
- Blocks containing only one category
- About the special seventh character
- Documentation
- is_valid_item(code)
- is_category_or_subcategory(code)
- is_chapter_or_block(code)
- is_chapter(code)
- is_block(code)
- is_category(code)
- is_subcategory(code, include_extended_subcategories=True)
- is_extended_subcategory(code)
- get_description(code, prioritize_blocks=False)
- get_excludes1(code, prioritize_blocks=False)
- get_excludes2(code, prioritize_blocks=False)
- get_includes(code, prioritize_blocks=False)
- get_inclusion_term(code, prioritize_blocks=False)
- get_seven_chr_note(code, search_in_ancestors=False, prioritize_blocks=False)
- get_seven_chr_def(code, search_in_ancestors=False, prioritize_blocks=False)
- get_use_additional_code(code, search_in_ancestors=False, prioritize_blocks=False)
- get_code_first(code, search_in_ancestors=False, prioritize_blocks=False)
- get_full_data(code, search_in_ancestors=False, prioritize_blocks=False)
- get_parent(code, prioritize_blocks=False)
- get_children(code, prioritize_blocks=False)
- get_ancestors(code, prioritize_blocks=False)
- get_descendants(code, prioritize_blocks=False)
- is_ancestor(a, b, prioritize_blocks_a=False, prioritize_blocks_b=False)
- is_descendant(a, b, prioritize_blocks_a=False, prioritize_blocks_b=False)
- get_nearest_common_ancestor(a, b, prioritize_blocks_a=False, prioritize_blocks_b=False)
- is_leaf(code, prioritize_blocks=False)
- get_all_codes(with_dots=True)
- get_index(code)
- remove_dot(code)
- add_dot(code)
- change_version(all_codes_file_path=None, classification_data_file_path=None)
- Conclusion
- 1.3.0:
- Users can now use their preferred ICD-10-CM release by providing properly formatted files as inputs
- The default ICD-10-CM release of the library is now the April 2025 release
- Renamed some internal variables (you should not have been using them anyway!)
- Dropped Conda support, older versions are still available
- Added type hints for optional parameters
- 1.2.0: Added type hints - thanks to @JosephSBoyle on GitHub
- 1.1.2: Minor fix in get_full_data
- 1.1.1: Fixed a minor error in the release
- 1.1.0: Fixed a bug that caused many codes not to be included
- 1.0.5: Fixed a minor bug that affected get_nearest_common_ancestor(a,b) when a and b were the same code but written in different formats.
- 1.0.4: Managed to get the built package to read the data files
- 1.0.0: Initial release
The objective of this library is to provide a simple instrument for dealing with ICD-10-CM codes in Python. It provides ways to check whether a code exists, find its ancestors and descendants, see the data associated with it, including its description, and much more.
If you are looking for a library that deals with ICD-10 codes instead of ICD-10-CM codes, you can check the simple_icd_10 library, which is based on the 2019 version of ICD-10. If you are interested in the ICD-11 MMS classification, you can check out instead the simple_icd_11 library.
There is also a Java version of this library, SimpleICD10CM-Java-edition.
The data used in this library was taken from the website of the CDC. This library currently uses the April 2025 release of ICD-10-CM. This package can be configured to use other releases of the ICD-10-CM classification, read the section Using other ICD-10-CM releases for more details.
If you feel like supporting me, please check out the Conclusion section.
simple_icd_10_cm is licensed under the MIT License.
You can install the package with pip, using this command:
pip install simple-icd-10-cm
The distribution files are also available as releases in the Github repository.
You can also use the "simple_icd_10_cm.py" file, which contains all the source code, in conjunction with the "data" folder, which contains the data used in this library (you can find them in the GitHub repository).
You can use other releases of ICD-10-CM by providing properly formatted data files.
The default release is automatically loaded when the package is imported. Therefore, no further setup is required for users who want to use the default release. On the other hand, it is loaded even if the user wants to load a different release, resulting in additional unnecessary overhead. Since most users are expected to use the default release, and to guarantee backward compatibility with earlier versions of the library, this approach was considered the best overall compromise.
The function that allows to use different releases is the change_version
function. It takes two optional arguments all_codes_file_path
and classification_data_file_path
, which specify, respectively, the path to the file containing a list of all the codes and the path to the XML file containing the whole structured classification. These files are described in more detail later. If both paths are provided, change_version
loads the ICD-10-CM release described in those files. If both parameters are left empty, it loads the default release. If one parameter is provided and the other is left empty, change_version
raises a ValueError
exception.
# loads the files of another release
cm.change_version(all_codes_file_path="code-list-January-2021.txt",classification_data_file_path="icd10cm_tabular_2021.xml")
# loads the default release
cm.change_version()
# these both raise an exception
cm.change_version(all_codes_file_path="code-list-January-2021.txt")
cm.change_version(classification_data_file_path="icd10cm_tabular_2021.xml")
The file specified in all_codes_file_path
should contain all the unique codes of the desired release. However, it is sufficient that it contains all the seven-characters codes that must be generated programmatically, that is all the valid codes that are not explicitly listed in the XML file (see About the special seventh character for more information). Each line in this file must contain a single code. Codes can be written in the format with or without the dot. In each line, the code may be followed by any text, as long as there is at least one space character immediately after the code. The icd10cm-codes
text files available from the CDC's website can be used for this purpose, without modification.
The file specified in classification_data_file_path
is the XML containing the whole classification. This typically corresponds to the icd10cm-tabular
XML files available from the CDC's website. If using XML files from another origin, note that, in the official releases, the first two children of the root XML element are not part of the structure of the classification, and are therefore skipped by the library.
Examples of both file types can be found in the all-data folder, which includes data for the current default release and for a previous release.
Subcategories codes can be written in two different ways: with a dot (for example "I13.1") and with no dot (for example "I131"). The functions in this library can receive as input codes in both these formats. The codes returned by the functions will always be in the format with the dot.
You can easily change the format of a code by using the remove_dot
and add_dot
functions.
The file Instructional Notations.md contains the introduction present in the file icd10cm-tabular-April-2025.xml
(the file that contains the whole ICD-10-CM classification), copied there in a more accessible and readable format. There you can find an explanation about the meaning of most of the additional fields that can accompany a code.
Unlike ICD-10, ICD-10-CM includes blocks of categories that contain only one category (and its subcategories). These blocks are named after the category that they contain, which means that ICD-10-CM contains blocks and categories that have the same exact code. This is a problem: because of this questionable decision, we can't know for sure if the code "B99", for example, refers to the category "B99" or to the block with the same name. This can be seen in the following example, where "B99" is recognized as both a block and a category:
cm.is_block("B99")
#True
cm.is_category("B99")
#True
To solve this ambiguity, I've introduced in most functions the optional argument prioritize_blocks
. This optional argument has an effect only when the string passed as input could be the name of a category or of its parent block: when this ambiguity is not present, the value of this argument won't have any impact on the computation. When prioritize_blocks
is False, which is the default value, the ambiguous code will be interpreted as the category, when it's set to True the same code will be interpreted as being the block. The following code shows an example of this in action:
cm.get_children("B99")
#['B99.8', 'B99.9']
cm.get_children("B99",prioritize_blocks=True)
#['B99']
If you want to know if a specific code is ambiguous, it's pretty simple: you just have to check if it's at the same time a block and a category, as in the following examples:
cm.is_block("B10") and cm.is_category("B10")
#True
cm.is_block("I12") and cm.is_category("I12")
#False
The file icd10cm-tabular-April-2025.xml
, which is the XML file that contains the whole ICD-10-CM classification, doesn't have an entry for all the codes generated by adding the "special" seventh character, but it often contains instead rules that explain how to generate these codes in the "sevenChrDef" field (and sometimes in the "sevenChrNote" field too, just to complicate things a little bit...). You can find more about the structure of these particular codes in Instructional Notations.md.
Due to the lack of a complete entry for these missing codes, I had to decide how they would be handled in this library. So I decided that their only field would be the description, composed of the description of their parent followed by the description of the meaning of the additional character, with a comma between the two: this description appears in official documents about ICD-10-CM, so it's not my invention but the actual official format. All the other fields are empty, but the optional argument search_in_ancestors
of certain functions can be used to automatically retrieve the content of certain fields from the ancestors of the code (see the description of the specific functions in the Documentation for more details).
Seven-characters codes that have an entry in icd10cm-tabular-April-2025.xml
are treated like any other code, and their data is taken directly from the file.
If you need to know whether a code has been automatically generated using a rule described in a "sevenChrDef" field, you can use the is_extended_subcategory
function. Only the codes generated programmatically are classified as "extended subcategories", the seven-characters codes explicitly listed in the data are classified as "subcategories".
Here I list all the functions provided by this library and describe how to use them. If you are interested in a more interactive introduction to simple_icd_10_cm, please take a look at the Jupyter Notebook "Showcase notebook.ipynb"; there you can also find more examples.
Here I suppose we have imported the library as follows:
import simple_icd_10_cm as cm
This function takes a string as input and returns True if the string is a valid chapter, block, category or subcategory in ICD-10-CM, False otherwise.
cm.is_valid_item("cat")
#False
cm.is_valid_item("B99")
#True
This function takes a string as input and returns True if the string is a valid category or subcategory in ICD-10-CM, False otherwise.
cm.is_category_or_subcategory("A00-B99")
#False
cm.is_category_or_subcategory("B99")
#True
This function takes a string as input and returns True if the string is a valid chapter or block in ICD-10-CM, False otherwise.
cm.is_chapter_or_block("L80-L99")
#True
cm.is_chapter_or_block("L99")
#False
This function takes a string as input and returns True if the string is a valid chapter in ICD-10-CM, False otherwise.
cm.is_chapter("12")
#True
cm.is_chapter("B99")
#False
This function takes a string as input and returns True if the string is a valid block in ICD-10-CM, False otherwise.
cm.is_block("L80-L99")
#True
cm.is_block("L99")
#False
This function takes a string as input and returns True if the string is a valid category in ICD-10-CM, False otherwise.
cm.is_category("B99")
#True
cm.is_category("14")
#False
This function takes a string as input and returns True if the string is a valid subcategory in ICD-10-CM, False otherwise. By setting the optional argument include_extended_subcategories
to False, this function will also return False if the string is a valid subcategory obtained by programmatically adding the 7th character to another code (see About the special seventh character and Instructional Notations for more information).
cm.is_subcategory("B95.1")
#True
cm.is_subcategory("B99")
#False
cm.is_subcategory("S12.000G")
#True
cm.is_subcategory("S12.000G", include_extended_subcategories=False)
#False
cm.is_subcategory("C44.1192", include_extended_subcategories=False)
#True
This function takes a string as input and returns True if the string is a valid subcategory in ICD-10-CM obtained by programmatically adding the 7th character to another code (see About the special seventh character and Instructional Notations for more information), False otherwise.
cm.is_extended_subcategory("S12.000G")
#True
cm.is_extended_subcategory("S12.000")
#False
cm.is_extended_subcategory("C44.1192")
#False
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a string containing its description, otherwise it raises a ValueError. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_description("12")
#'Diseases of the skin and subcutaneous tissue (L00-L99)'
cm.get_description("I70.501")
#'Unspecified atherosclerosis of nonautologous biological bypass graft(s) of the extremities, right leg'
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list of strings containing the data of the "excludes1" field of this code, otherwise it raises a ValueError. If this code does not have an "excludes1" field, it returns an empty list. Please see Instructional Notations if you have doubts about the meaning of this field. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_excludes1("12")
#[]
cm.get_excludes1("I82.40")
#['acute embolism and thrombosis of unspecified deep veins of distal lower extremity (I82.4Z-)',
# 'acute embolism and thrombosis of unspecified deep veins of proximal lower extremity (I82.4Y-)']
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list of strings containing the data of the "excludes2" field of this code, otherwise it raises a ValueError. If this code does not have an "excludes2" field, it returns an empty list. Please see Instructional Notations if you have doubts about the meaning of this field. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_excludes2("I82.40")
#[]
cm.get_excludes2("J34.81")
#['gastrointestinal mucositis (ulcerative) (K92.81)',
# 'mucositis (ulcerative) of vagina and vulva (N76.81)',
# 'oral mucositis (ulcerative) (K12.3-)']
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list of strings containing the data of the "includes" field of this code, otherwise it raises a ValueError. If this code does not have an "includes" field, it returns an empty list. Please see Instructional Notations if you have doubts about the meaning of this field. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_includes("I82.40")
#[]
cm.get_includes("J36")
#['abscess of tonsil', 'peritonsillar cellulitis', 'quinsy']
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list of strings containing the data of the "inclusionTerm" field of this code, otherwise it raises a ValueError. If this code does not have an "inclusionTerm" field, it returns an empty list. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_inclusion_term("A23")
#[]
cm.get_inclusion_term("J37.0")
#['Catarrhal laryngitis', 'Hypertrophic laryngitis', 'Sicca laryngitis']
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a string containing the data of the "sevenChrNote" field of this code, otherwise it raises a ValueError. If this code does not have a "sevenChrNote" field, it returns an empty string. Please see Instructional Notations and About the special seventh character if you have doubts about the meaning of this field. When the optional argument search_in_ancestors
is set to True, if the given code doesn't have a "sevenChrNote" field but one of its ancestor does, the "sevenChrNote" data of the closer ancestor that contains such a field is returned. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_seven_chr_note("I82.40")
#''
cm.get_seven_chr_note("M48.4")
#'The appropriate 7th character is to be added to each code from subcategory M48.4:'
cm.get_seven_chr_note("R40.241")
#''
cm.get_seven_chr_note("R40.241",search_in_ancestors=True)
#'The following appropriate 7th character is to be added to subcategory R40.24-:'
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a dictionary containing the data of the "sevenChrDef" field of this code, otherwise it raises a ValueError. The dictionary maps the seventh character to a string that contains its meaning. If this code does not have a "sevenChrDef" field, it returns an empty list. Please see Instructional Notations and About the special seventh character if you have doubts about the meaning of this field. When the optional argument search_in_ancestors
is set to True, if the given code doesn't have a "sevenChrDef" field but one of its ancestor does, the "sevenChrDef" data of the closer ancestor that contains such a field is returned. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_seven_chr_def("I82.40")
#{}
cm.get_seven_chr_def("M48.4")
#{'A': 'initial encounter for fracture',
# 'D': 'subsequent encounter for fracture with routine healing',
# 'G': 'subsequent encounter for fracture with delayed healing',
# 'S': 'sequela of fracture'}
cm.get_seven_chr_def("R40.241")
#{}
cm.get_seven_chr_def("R40.241",search_in_ancestors=True)
#{'0': 'unspecified time',
# '1': 'in the field [EMT or ambulance]',
# '2': 'at arrival to emergency department',
# '3': 'at hospital admission',
# '4': '24 hours or more after hospital admission'}
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a string containing the data of the "useAdditionalCode" field of this code, otherwise it raises a ValueError. If this code does not have an "useAdditionalCode" field, it returns an empty string. Please see Instructional Notations if you have doubts about the meaning of this field. When the optional argument search_in_ancestors
is set to True, if the given code doesn't have a "useAdditionalCode" field but one of its ancestor does, the "useAdditionalCode" data of the closer ancestor that contains such a field is returned. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_use_additional_code("I82.41")
#''
cm.get_use_additional_code("R50.2")
#'code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)'
cm.get_use_additional_code("R65.20")
#''
cm.get_use_additional_code("R65.20",search_in_ancestors=True)
#'code to identify specific acute organ dysfunction, such as:
# acute kidney failure (N17.-)
# acute respiratory failure (J96.0-)
# critical illness myopathy (G72.81)
# critical illness polyneuropathy (G62.81)
# disseminated intravascular coagulopathy [DIC] (D65)
# encephalopathy (metabolic) (septic) (G93.41)
# hepatic failure (K72.0-)'
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a string containing the data of the "codeFirst" field of this code, otherwise it raises a ValueError. If this code does not have a "codeFirst" field, it returns an empty string. Please see Instructional Notations if you have doubts about the meaning of this field. When the optional argument search_in_ancestors
is set to True, if the given code doesn't have a "codeFirst" field but one of its ancestor does, the "codeFirst" data of the closer ancestor that contains such a field is returned. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_code_first("I82.41")
#''
cm.get_code_first("R68.13")
#'confirmed diagnosis, if known'
cm.get_code_first("S04.01")
#''
cm.get_code_first("S04.01",search_in_ancestors=True)
#'any associated intracranial injury (S06.-)'
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a string containing all the available data of the code, otherwise it raises a ValueError. The empty fields are omitted from the string, except for the list of children (see second example below). When the optional argument search_in_ancestors
is set to True, if the given code doesn't have a certain field but one of its ancestor does, the data of the closer ancestor that contains such a field is returned: see the previous functions to know which are the fields that are influenced by this argument and which are not. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_full_data("I82.41")
#'Name:
# I82.41
# Description:
# Acute embolism and thrombosis of femoral vein
# Parent:
# I82.4
# inclusion term:
# Acute embolism and thrombosis of common femoral vein
# Acute embolism and thrombosis of deep femoral vein
# Children:
# I82.411, I82.412, I82.413, I82.419'
cm.get_full_data("C8401")
#'Name:
# C84.01
# Description:
# Mycosis fungoides, lymph nodes of head, face, and neck
# Parent:
# C84.0
# Children:
# None'
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a string containing its parent, otherwise it raises a ValueError. If the code doesn't have a parent (that is, if it's a chapter), it returns an empty string. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_parent("I70.501")
#'I70.50'
cm.get_parent("12")
#''
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list of strings containing its children, otherwise it raises a ValueError. If the code doesn't have children, it returns an empty list. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_children("12")
#['L00-L08', 'L10-L14', 'L20-L30', 'L40-L45', 'L49-L54', 'L55-L59', 'L60-L75', 'L76', 'L80-L99']
cm.get_children("I70.501")
#[]
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list containing all its ancestors in the ICD-10-CM classification, otherwise it raises a ValueError. The results are ordered from its parent to its most distant ancestor. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_ancestors("S14.109S")
#['S14.109', 'S14.10', 'S14.1', 'S14', 'S10-S19', '19']
cm.get_ancestors("7")
#[]
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns a list containing all its descendants in the ICD-10-CM classification, otherwise it raises a ValueError. The returned codes are ordered as in a pre-order depth-first traversal of the tree containing the ICD-10-CM classification. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.get_descendants("G93")
#['G93.0', 'G93.1', 'G93.2', 'G93.3', 'G93.4', 'G93.40', 'G93.41', 'G93.49', 'G93.5', 'G93.6', 'G93.7', 'G93.8', 'G93.81', 'G93.82', 'G93.89', 'G93.9']
cm.get_descendants("S14.109S")
#[]
This function takes two strings as input. If both strings are valid ICD-10-CM codes, it returns True if the first string is an ancestor of the second string. If at least one of the strings is not a valid ICD-10-CM code, it raises a ValueError. The optional arguments prioritize_blocks_a
and prioritize_blocks_b
refer, respectively, to the codes in a
and b
; please see Blocks containing only one category for the meaning of these optional arguments.
cm.is_ancestor("18","R01.0")
#True
cm.is_ancestor("K00-K14","M31")
#False
cm.is_ancestor("B99","B99")
#False
cm.is_ancestor("B99","B99",prioritize_blocks_a=True)
#True
This function takes two strings as input. If both strings are valid ICD-10-CM codes, it returns True if the first string is a descendant of the second string. If at least one of the strings is not a valid ICD-10-CM code, it raises a ValueError. The optional arguments prioritize_blocks_a
and prioritize_blocks_b
refer, respectively, to the codes in a
and b
; please see Blocks containing only one category for the meaning of these optional arguments.
cm.is_descendant("R01.0","18")
#True
cm.is_descendant("M31","K00-K14")
#False
This function takes two strings as input. If both strings are valid ICD-10-CM codes, it returns their nearest common ancestor if it exists, an empty string if it doesn't exist. If at least one of the strings is not a valid ICD-10-CM code, it raises a ValueError. The optional arguments prioritize_blocks_a
and prioritize_blocks_b
refer, respectively, to the codes in a
and b
; please see Blocks containing only one category for the meaning of these optional arguments.
cm.get_nearest_common_ancestor("H28","H25.1")
#'H25-H28'
cm.get_nearest_common_ancestor("K35","E21.0")
#''
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns True if it's a leaf in the ICD-10-CM classification (that is, if it has no children), otherwise it returns False. If the string is not a valid ICD-10-CM code, it raises a ValueError. For the meaning of the optional argument prioritize_blocks
, please see Blocks containing only one category.
cm.is_leaf("12")
#False
cm.is_leaf("I70.501")
#True
This function returns the list of all items in the ICD-10-CM classification. If the optional boolean argument with_dots
is set to False, the subcategories in the list will not have a dot in them, otherwise the subcategories will have a dot in them. The codes that represent both a block and a category (for example "B99") appear only once in this list.
cm.get_all_codes()
#['1', 'A00-A09', 'A00', 'A00.0', 'A00.1', 'A00.9', 'A01', 'A01.0', ...
cm.get_all_codes(False)
#['1', 'A00-A09', 'A00', 'A000', 'A001', 'A009', 'A01', 'A010', ...
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns its index in the list returned by get_all_codes
, otherwise it raises a ValueError.
cm.get_index("P00")
#27735
cm.get_all_codes(True)[27735]
#"P00"
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns the same code in the notation without the dot, otherwise it raises a ValueError.
cm.remove_dot("C84.Z0")
#'C84Z0'
cm.remove_dot("C84Z0")
#'C84Z0'
cm.remove_dot("K00-K14")
#'K00-K14'
This function takes a string as input. If the string is a valid ICD-10-CM code, it returns the same code in the notation with the dot, otherwise it raises a ValueError.
cm.add_dot("C84Z0")
#'C84.Z0'
cm.add_dot("C84.Z0")
#'C84.Z0'
cm.add_dot("K00-K14")
#'K00-K14'
This function can be used to load any ICD-10-CM release provided by the user, or to revert to using the default release for the package. Its usage is explained in the paragraph Using other ICD-10-CM releases.
This should be everything you need to know about the simple_icd_10_cm library. Please contact me if you find any mistake, bug, missing feature or anything else that could be improved or made easier to comprehend, both in this documentation and in the library itself as well as in the Showcase notebook. You can also contact me if you need any help using this library, but I may not be able to help with questions about the ICD-10-CM classification itself.
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Stefano Travasci
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