ICD-10-CM 2027 diagnosis code
Z71.42Counseling for family member of alcoholic
Z71.42 is a valid, billable ICD-10-CM code for counseling for family member of alcoholic. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z71.42
Z71.42 is the ICD-10-CM diagnosis code for counseling for family member of alcoholic. It belongs to category Z71 (persons encountering health services for other counseling and medical advice, not elsewhere classified), block Z69-Z76 (persons encountering health services in other circumstances) 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 Z71.4 (alcohol abuse counseling and surveillance), Z71.42 is specifically for counseling for family member of alcoholic. Related codes cover of alcoholic (Z71.41).
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 hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as V65.42 (counseling on substance use and abuse).
Coding notes
- Counseling for significant other, partner, or friend of alcoholic
Notes that apply from higher levels
Instructions written at a parent level also apply to Z71.42.
› From Z71.4 Alcohol abuse counseling and surveillance
- code for alcohol abuse or dependence (F10.-)
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 Z71.42.
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 →- V65.42Counseling on substance use and abuseapproximate
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)
- No changes since FY2016.
Common questions about Z71.42
Is Z71.42 billable?
- Yes. Z71.42 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z71.42 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 Z71.42 a CC or MCC?
- No. Z71.42 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z71.42 group to?
- Z71.42 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.