ICD-9-CM procedure code (retired)
28.2 — Tonsillectomy without adenoidectomy
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 28.2
28.2 is an ICD-9-CM procedure code for tonsillectomy without adenoidectomy. 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 2 ICD-10-PCS codes, such as 0CTP0ZZ (Resection of Tonsils, Open Approach) and 0CTPXZZ (Resection of Tonsils, External Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 28.2
What is the ICD-10 code for ICD-9 28.2?
- The GEMs map 28.2 to ICD-10-PCS 0CTP0ZZ and 0CTPXZZ.
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.