ICD-9-CM diagnosis code (retired)
E873.9 — Unspecified failure in dosage
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 E873.9
E873.9 is an ICD-9-CM diagnosis code for unspecified failure in dosage. 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, Y63.9 (Failure in dosage during unspecified surgical and medical care). The match is exact.
ICD-10-CM equivalents
- Y63.9Failure in dosage during unspecified surgical and medical careexact match
Common questions about E873.9
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.