ICD-9-CM diagnosis code (retired)
744.46 — Preauricular sinus or 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 744.46
744.46 is an ICD-9-CM diagnosis code for preauricular sinus or 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, Q18.1 (Preauricular sinus and cyst). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- Q18.1Preauricular sinus and cystapproximate
Common questions about 744.46
What is the ICD-10 code for ICD-9 744.46?
- The GEMs map 744.46 to ICD-10-CM Q18.1.
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.