ICD-9-CM diagnosis code (retired)
V28.5 — Antenatal screening for isoimmunization
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM V28.5
V28.5 is an ICD-9-CM diagnosis code for antenatal screening for isoimmunization. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, Z36.5 (Encounter for antenatal screening for isoimmunization). The match is exact.
ICD-10-CM equivalents
- Z36.5Encounter for antenatal screening for isoimmunizationexact match
Common questions about V28.5
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.