ICD-9-CM diagnosis code (retired)
149.9 — Malignant neoplasm of ill-defined sites within the lip and oral cavity
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 149.9
149.9 is an ICD-9-CM diagnosis code for malignant neoplasm of ill-defined sites within the lip and oral cavity. 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, C14.8 (Malignant neoplasm of overlapping sites of lip, oral cavity and pharynx). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- C14.8Malignant neoplasm of overlapping sites of lip, oral cavity and pharynxapproximate
Common questions about 149.9
What is the ICD-10 code for ICD-9 149.9?
- The GEMs map 149.9 to ICD-10-CM C14.8.
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.