ICD-9-CM diagnosis code (retired)
634.80 — Spontaneous abortion, with unspecified complication, 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 634.80
634.80 is an ICD-9-CM diagnosis code for spontaneous abortion, with unspecified complication, 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, O03.80 (Unspecified complication following complete or unspecified spontaneous abortion). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- O03.80Unspecified complication following complete or unspecified spontaneous abortionapproximate
Common questions about 634.80
What is the ICD-10 code for ICD-9 634.80?
- The GEMs map 634.80 to ICD-10-CM O03.80.
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.