ICD-9-CM procedure code (retired)
21.21 — Rhinoscopy
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 21.21
21.21 is an ICD-9-CM procedure code for Rhinoscopy. 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 09JK8ZZ (Inspection of Nasal Mucosa and Soft Tissue, Via Natural or Artificial Opening Endoscopic) and 09JKXZZ (Inspection of Nasal Mucosa and Soft Tissue, External Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 21.21
What is the ICD-10 code for ICD-9 21.21?
- The GEMs map 21.21 to ICD-10-PCS 09JK8ZZ and 09JKXZZ.
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.