ICD-9-CM diagnosis code (retired)
783.40 — Lack of normal physiological development, unspecified
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 783.40
783.40 is an ICD-9-CM diagnosis code for lack of normal physiological development, unspecified. 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, R62.50 (Unspecified lack of expected normal physiological development in childhood). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- R62.50Unspecified lack of expected normal physiological development in childhoodapproximate
Common questions about 783.40
What is the ICD-10 code for ICD-9 783.40?
- The GEMs map 783.40 to ICD-10-CM R62.50.
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.