ICD-9-CM diagnosis code (retired)
V56.31 — Encounter for adequacy testing for hemodialysis
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 V56.31
V56.31 is an ICD-9-CM diagnosis code for encounter for adequacy testing for hemodialysis. 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, Z49.31 (Encounter for adequacy testing for hemodialysis). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- Z49.31Encounter for adequacy testing for hemodialysisapproximate
Common questions about V56.31
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.