ICD-9-CM procedure code (retired)
27.31 — Local excision or destruction of lesion or tissue of bony palate
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 27.31
27.31 is an ICD-9-CM procedure code for local excision or destruction of lesion or tissue of bony palate. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 6 ICD-10-PCS codes, such as 0C520ZZ (Destruction of Hard Palate, Open Approach), 0C523ZZ (Destruction of Hard Palate, Percutaneous Approach) and 0C52XZZ (Destruction of Hard Palate, External Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0C520ZZDestruction of Hard Palate, Open Approachapproximate
- 0C523ZZDestruction of Hard Palate, Percutaneous Approachapproximate
- 0C52XZZDestruction of Hard Palate, External Approachapproximate
- 0CB20ZZExcision of Hard Palate, Open Approachapproximate
- 0CB23ZZExcision of Hard Palate, Percutaneous Approachapproximate
- 0CB2XZZExcision of Hard Palate, External Approachapproximate
Common questions about 27.31
What is the ICD-10 code for ICD-9 27.31?
- The GEMs map 27.31 to ICD-10-PCS 0C520ZZ, 0C523ZZ, 0C52XZZ, 0CB20ZZ, 0CB23ZZ and 0CB2XZZ.
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.