ICD-9-CM diagnosis code (retired)
478.24 — Retropharyngeal abscess
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 478.24
478.24 is an ICD-9-CM diagnosis code for Retropharyngeal abscess. 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, J39.0 (Retropharyngeal and parapharyngeal abscess). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- J39.0Retropharyngeal and parapharyngeal abscessapproximate
Common questions about 478.24
What is the ICD-10 code for ICD-9 478.24?
- The GEMs map 478.24 to ICD-10-CM J39.0.
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.