ICD-9-CM diagnosis code (retired)
V77.99 — Screening for other and unspecified endocrine, nutritional, metabolic, and immunity disorders
About ICD-9-CM V77.99
V77.99 is an ICD-9-CM diagnosis code for screening for other and unspecified endocrine, nutritional, metabolic, and immunity disorders. 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 3 ICD-10-CM codes, such as Z13.21 (Encounter for screening for nutritional disorder), Z13.228 (Encounter for screening for other metabolic disorders) and Z13.29 (Encounter for screening for other suspected endocrine disorder). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about V77.99
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.