ICD-9-CM diagnosis code (retired)
634.21 — Spontaneous abortion, complicated by damage to pelvic organs or tissues, incomplete
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 634.21
634.21 is an ICD-9-CM diagnosis code for spontaneous abortion, complicated by damage to pelvic organs or tissues, incomplete. 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, O03.34 (Damage to pelvic organs following incomplete spontaneous abortion). The match is exact.
ICD-10-CM equivalents
- O03.34Damage to pelvic organs following incomplete spontaneous abortionexact match
Common questions about 634.21
What is the ICD-10 code for ICD-9 634.21?
- The GEMs map 634.21 to ICD-10-CM O03.34.
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.