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Unified Medical Language System (UMLS)

UMLS Vocabularies

ICD10PCS (ICD-10 Procedure Coding System) - Metathesaurus Representation


This page lists UMLS Metathesaurus data elements and traces them back to the specific source data that populates them.

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Atoms
Attributes
Relationships

VSAB: ICD10PCS_2024

Summary of Changes

No updates for this version.

Source Provided Files:

Numerous documentation and data files are available at: https://www.cms.gov/medicare/icd-10/2023-icd-10-pcs , including the following:

Documentation and Reference
File Description
definitions_addenda_2024.pdf
icd10pcsCodesFile.pdf
icd10pcsOrderFile.pdf Documentation for the icd10pcs_order_2024.txt file
icd10pcs_definitions.xsd xml schema document describing definitions xml format
icd10pcs_index.xsd
icd10pcs_tables.xsd xml schema document describing tabular xml format
index_addenda_2024.pdf
pcs_2024.pdf Information about tables indicating meaning of codes for specific character positions; index to codes
pcs_update_summary_2024.pdf
tables_addenda_2024.pdf
Data files
File Description
icd10pcs_order_2024.txt Long and short descriptions
icd10pcs_tables_2024.xml Tabular data

Identifiers:

Identifiers are assigned as follows:
  • CODE: 3 or 7-character code from icd10pcs_order_YYYY.txt, or assembled code from icd10pcs_tables_YYYY.xml
  • SAUI: Not applicable
  • SCUI: same as CODE
  • SDUI: Not applicable

Atoms (MRCONSO):

Term Type Origin
AB CODE: 7-character code from icd10pcs_order_YYYY.txt (character positions 7-13)
STR: Short description from icd10pcs_order_YYYY.txt (character positions 17-76)
SCUI: same as CODE
SUPPRESS = "Y"

Note: AB atoms are created when character position 15 = "1", indicating that the code is valid for submission on a UB04
HS CODE: 3-character code from icd10pcs_order_YYYY.txt (character positions 7-9)
STR: Short description from icd10pcs_order_YYYY.txt (character positions 17-76)
SCUI: same as CODE
SUPPRESS = "Y"

Note: HS atoms are created when character position 15 = "0", indicating that the code is a "header" -- not valid for submission on a UB04
HT CODE: 3-character code from icd10pcs_order_YYYY.txt (character positions 7-9)
STR: Short description from icd10pcs_order_YYYY.txt (character positions 17-76)
SCUI: Same as CODE

Note: HS atoms are created when character position 15 = "0", indicating that the code is a "header" -- not valid for submission on a UB04
HX CODE: assembled from values icd10pcs_tables_XXXX.xml
STR: assembled from values in icd10pcs_tables_XXXX.xml, using "@" as a subfield separator
SCUI: same as CODE

TTY = "HX" atoms are created for levels 2-6
MTH_HX CODE: assembled from values icd10pcs_tables_YYYY.xml
STR: assembled from values in icd10pcs_tables_YYYY.xml, using "@" as a subfield separator; the string "(Therapy)" or "(Procedure)" is appended as appropriate
SCUI: same as CODE

TTY = "MTH_HT" atoms are created for levels 1-2
PT CODE: 7-character code from icd10pcs_order_YYYY.txt (character positions 7-13)
STR: Long description from icd10pcs_order_YYYY.txt (character positions 78 - end)
SCUI: same as CODE
SUPPRESS = "N"

Note: PT atoms are created when character position 15 = "1", indicating that the code is valid for submission on a UB04
PX CODE: assembled from values icd10pcs_tables_YYYY.xml
STR: assembled from values in icd10pcs_tables_YYYY.xml, using "@" as a subfield separator
SCUI: same as CODE

TTY = "PX" atoms are created for level 7

Attributes (MRSAT):

Attribute Name Origin
ADDED_MEANING Additional descriptive information about a header term extracted from <definition> tag in icd10pcs_definitions_YYYY.xml
ORDER_NO Order number from icd10pcs_order_YYYY.txt (character positions 1-5)

Relationships (MRREL):

REL RELA
Inverse RELA		 ORIGIN
SY expanded_form_of
has_expanded_form 		Connect AB and PT descriptions
Connect PT and PX descriptions
Connect HS and HT descriptions
Connect HT and HX descriptions