Stata 15 help for icd10pcs

[D] icd10pcs -- ICD-10-PCS procedure codes

Syntax

Verify that variable contains defined codes

icd10pcs check varname [if] [in] [, checkopts]

Clean variable and verify format of codes

icd10pcs clean varname [if] [in], {generate(newvar) | replace} [cleanopts]

Generate new variable from existing variable

icd10pcs generate newvar = varname [if] [in], category [check]

icd10pcs generate newvar = varname [if] [in], description [genopts]

icd10pcs generate newvar = varname [if] [in], range(codelist) [check]

Display code descriptions

icd10pcs lookup codelist [, version(#)]

Search for codes from descriptions

icd10pcs search ["]text["] [["]text["] ...] [, searchopts]

Display ICD-10-PCS version

icd10pcs query

codelist is one of the following:

icd10code (the particular code) icd10code* (all codes starting with) icd10code/icd10code (the code range)

or any combination of the above, such as 041.E09P 2W3* BQ2L/BQ2LZZZ.

checkopts Description ------------------------------------------------------------------------- fmtonly check only format of the codes summary frequency of each invalid or undefined code list list observations with invalid or undefined ICD-10-PCS codes generate(newvar) create new variable marking invalid codes version(#) fiscal year to check codes against; default is version(2019) -------------------------------------------------------------------------

cleanopts Description ------------------------------------------------------------------------- * generate(newvar) create new variable containing cleaned codes * replace replace existing codes with the cleaned codes check check that variable contains ICD-10-PCS codes before cleaning nodots format codes without a period ------------------------------------------------------------------------- * Either generate() or replace is required.

genopts Description ------------------------------------------------------------------------- addcode(begin|end) add code to the beginning or end of the description nodots format codes without a period; must specify addcode() check check that variable contains ICD-10-PCS codes before generating new variable long use long description rather than short version(#) select description from year #; default is version(2019) -------------------------------------------------------------------------

searchopts Description ------------------------------------------------------------------------- or match any keyword matchcase match case of keywords version(#) select description from year #; default is all -------------------------------------------------------------------------

Menu

Data > ICD codes > ICD-10-PCS

Description

icd10pcs is a suite of commands for working with ICD-10-PCS procedure codes from U.S. federal fiscal year 2016 to the present. To see the current version of the ICD-10-PCS procedure codes and any changes that have been applied, type icd10pcs query.

icd10pcs check, icd10pcs clean, and icd10pcs generate are data management commands. icd10pcs check verifies that a variable contains defined ICD-10-PCS procedure codes and provides a summary of any problems encountered. icd10pcs clean standardizes the format of the codes. icd10pcs generate can create a binary indicator variable for whether the code is in a specified set of codes, a variable containing a corresponding higher-level code, or a variable containing the description of the code.

icd10pcs lookup and icd10pcs search are interactive utilities. icd10pcs lookup displays descriptions of the codes specified on the command line. icd10pcs search looks for relevant ICD-10-PCS procedure codes from keywords given on the command line.

Options

Options are presented under the following headings:

Options for icd10pcs check Options for icd10pcs clean Options for icd10pcs generate Option for icd10pcs lookup Options for icd10pcs search

Options for icd10pcs check

fmtonly tells icd10pcs check to verify that the codes fit the format of ICD-10-PCS procedure codes but not to check whether the codes are defined.

summary specifies that icd10pcs check should report the frequency of each invalid or undefined code that was found in the data. Codes are displayed in descending order by frequency. summary may not be combined with list.

list specifies that icd10pcs check list the observation number, the invalid or undefined ICD-10-PCS procedure code, and the reason the code is invalid or whether it is an undefined code. list may not be combined with summary.

generate(newvar) specifies that icd10pcs check create a new variable containing, for each observation, 0 if the observation contains a defined code. Otherwise, it contains a number from 1 to 11 if the code is invalid, 77 if the code is valid only for a previous version, 88 if the code is valid only for a later version, 99 if the code is undefined, or missing if the code is missing. The positive numbers indicate the kind of problem and correspond to the listing produced by icd10pcs check.

version(#) specifies the version of the codes that icd10pcs check should reference. # indicates the federal fiscal year for the codes. For example, use 2016 for federal fiscal year 2016 (FFY-2016), which is October 1, 2015 to September 30, 2016. icd10pcs supports all years after the United States officially adopted ICD-10-PCS. The appropriate value of # should be determined from the data source. The default is version(2019).

Warning: The default value of version() will change over time so that the most recent codes are used. Using the default value rather than specifying a specific version may change results after a new version of the codes is introduced.

Options for icd10pcs clean

generate(newvar) and replace specify how the formatted values of varname are to be handled. You must specify either generate() or replace.

generate() specifies that the cleaned values be placed in the new variable specified in newvar.

replace specifies that the existing values of varname be replaced with the formatted values.

check specifies that icd10pcs clean should first check that varname contains codes that fit the format of ICD-10-PCS procedure codes. Specifying the check option will slow down icd10pcs clean.

nodots specifies that the period be removed in the final format.

Options for icd10pcs generate

category, description, and range(codelist) specify the contents of the new variable that icd10pcs generate is to create. You do not need to icd10pcs clean varname before using icd10pcs generate; it will accept any supported format or combination of formats.

category specifies to extract the three-character category code from the ICD-10-PCS procedure code. The resulting variable may be used with the other icd10pcs subcommands.

description creates newvar containing descriptions of the ICD-10-PCS procedure codes.

range(codelist) creates a new indicator variable equal to 1 when the ICD-10-PCS procedure code is in the range specified, equal to 0 when the ICD-10-PCS procedure code is not in the range, and equal to missing when varname is missing.

addcode(begin|end) specifies that the code should be included with the text describing the code. Specifying addcode(begin) will prepend the code to the text. Specifying addcode(end) will append the code to the text.

nodots specifies that the code that is added to the description should be formatted without a period. nodots may be specified only if addcode() is also specified.

check specifies that icd10pcs generate should first check that varname contains codes that fit the format of ICD-10-PCS procedure codes. Specifying the check option will slow down the generate subcommand.

long specifies that the long description of the code be used rather than the short (abbreviated) description.

version(#) specifies the version of the codes that icd10pcs generate should reference. # indicates the federal fiscal year for the codes. For example, use 2016 for federal fiscal year 2016 (FFY-2016), which is October 1, 2015 to September 30, 2016. icd10pcs supports all years after the United States officially adopted ICD-10-PCS. The appropriate value of # should be determined from the data source. The default is version(2019).

Warning: The default value of version() will change over time so that the most recent codes are used. Using the default value rather than specifying a specific version may change results after a new version of the codes is introduced.

Option for icd10pcs lookup

version(#) specifies the version of the codes that icd10pcs lookup should reference. # indicates the federal fiscal year for the codes. For example, use 2016 for federal fiscal year 2016 (FFY-2016), which is October 1, 2015 to September 30, 2016. icd10pcs supports all years after the United States officially adopted ICD-10-PCS. The appropriate value of # should be determined from the data source. The default is version(2019).

Warning: The default value of version() will change over time so that the most recent codes are used. Using the default value rather than specifying a specific version may change results after a new version of the codes is introduced.

Options for icd10pcs search

or specifies that ICD-10-PCS procedure codes be searched for descriptions that contain any word specified with icd10pcs search. The default is to list only descriptions that contain all the words specified.

matchcase specifies that icd10pcs search should match the case of the keywords given on the command line. The default is to perform a case-insensitive search.

version(#) specifies the version of the codes that icd10pcs search should reference. # indicates the federal fiscal year for the codes. For example, use 2016 for federal fiscal year 2016 (FFY-2016), which is October 1, 2015 to September 30, 2016. icd10pcs supports all years after the United States officially adopted ICD-10-PCS.

By default, descriptions for all versions are searched, meaning that codes that changed descriptions and that have descriptions in multiple versions that contain the search terms will be duplicated. To ensure a list of unique code values, specify the version number.

Examples

View the current license and log of changes that WHO has made to the list of ICD-10 codes since icd10pcs was implemented in Stata . icd10pcs query

Setup . webuse hosp2015 . drop if dmonth < tm(2015m10)

Verify that the variable proc1 has valid codes procedure codes for federal fiscal year 2016 . icd10pcs check proc1, version(2016)

Clean the codes to make them more readable . icd10pcs clean proc1, replace

Stored results

icd10pcs check stores the following in r():

Scalars r(e#) number of errors of type # r(esum) total number of errors r(miss) number of missing values r(N) number of nonmissing values

icd10pcs clean stores the following in r():

Scalars r(N) number of changes

icd10pcs lookup and icd10pcs search store the following in r():

Scalars r(N_codes) number of codes found


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