ICD-9-CM diagnosis code (retired)
998.6 — Persistent postoperative 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 998.6
998.6 is an ICD-9-CM diagnosis code for persistent postoperative 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, T81.83XA (Persistent postprocedural fistula, initial encounter). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- T81.83XAPersistent postprocedural fistula, initial encounterapproximate
Common questions about 998.6
What is the ICD-10 code for ICD-9 998.6?
- The GEMs map 998.6 to ICD-10-CM T81.83XA.
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.