ICD-9-CM diagnosis code (retired)
510.9 — Empyema without mention of fistula
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 510.9
510.9 is an ICD-9-CM diagnosis code for Empyema without mention of fistula. 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, J86.9 (Pyothorax without fistula). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- J86.9Pyothorax without fistulaapproximate
Common questions about 510.9
What is the ICD-10 code for ICD-9 510.9?
- The GEMs map 510.9 to ICD-10-CM J86.9.
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.