ICD-10-CM 2027 diagnosis code
Z63.9Problem related to primary support group, unspecified
Z63.9 is a valid, billable ICD-10-CM code for problem related to primary support group, unspecified. 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 Z63.9
Z63.9 is the ICD-10-CM diagnosis code for problem related to primary support group, unspecified. It belongs to category Z63 (other problems related to primary support group, including family circumstances), block Z55-Z65 (persons with potential health hazards related to socioeconomic and psychosocial 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 Z63, choose Z63.9 (Problem related to primary support group, unspecified) only when documentation doesn't support a more specific option: problems in relationship with spouse or partner (Z63.0), problems in relationship with in-laws (Z63.1), absence of family member (Z63.3), Disappearance and death of family member (Z63.4), disruption of family by separation and divorce (Z63.5), dependent relative needing care at home (Z63.6), other stressful life events affecting family and household (Z63.7) and other specified problems related to primary support group (Z63.8).
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 V61.9 (unspecified family circumstance).
Coding notes
- Relationship disorder NOS
Notes that apply from higher levels
Instructions written at a parent level also apply to Z63.9.
Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.
Alphabetic index entries
6 entriesTerms in the official ICD-10-CM index that lead to Z63.9.
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 →- V61.9Unspecified family circumstanceapproximate
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 Z63.9
Is Z63.9 billable?
- Yes. Z63.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z63.9 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 Z63.9 a CC or MCC?
- No. Z63.9 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z63.9 group to?
- Z63.9 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.