ICD-10-CM 2027 diagnosis code
Z31.5Encounter for procreative genetic counseling
Z31.5 is a valid, billable ICD-10-CM code for encounter for procreative genetic counseling. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z31.5
Z31.5 is the ICD-10-CM diagnosis code for encounter for procreative genetic counseling. It belongs to category Z31 (encounter for procreative management), block Z30-Z39 (persons encountering health services in circumstances related to reproduction) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within Z31 (encounter for procreative management), Z31.5 is specifically for encounter for procreative genetic counseling. Related codes cover reversal of previous sterilization (Z31.0), procreative investigation and testing (Z31.4), general counseling and advice on procreation (Z31.6), and counseling for gestational carrier (Z31.7), other procreative management (Z31.8) and unspecified (Z31.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2018 (title revised).
Before ICD-10, this condition was coded in ICD-9-CM as V26.33 (genetic counseling).
Notes that apply from higher levels
Instructions written at a parent level also apply to Z31.5.
Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to Z31.5.
Codes whose notes reference Z31.5
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
ICD-9-CM equivalent
Converter →- V26.33Genetic counselingapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2018 (effective 10/1/2017): Title revised — was “Encounter for genetic counseling”
Common questions about Z31.5
Is Z31.5 billable?
- Yes. Z31.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z31.5 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z31.5 a CC or MCC?
- No. Z31.5 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z31.5 group to?
- Z31.5 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.