ICD-9-CM diagnosis code (retired)
634.40 — Spontaneous abortion, complicated by metabolic disorder, 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 634.40
634.40 is an ICD-9-CM diagnosis code for spontaneous abortion, complicated by metabolic disorder, 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, O03.83 (Metabolic disorder following complete or unspecified spontaneous abortion). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- O03.83Metabolic disorder following complete or unspecified spontaneous abortionapproximate
Common questions about 634.40
What is the ICD-10 code for ICD-9 634.40?
- The GEMs map 634.40 to ICD-10-CM O03.83.
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.