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ICD-9-CM procedure code (retired)

29.91 — Dilation of pharynx

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 29.91

29.91 is an ICD-9-CM procedure code for dilation of pharynx. 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 4 ICD-10-PCS codes, such as 0C7M7DZ (Dilation of Pharynx with Intraluminal Device, Via Natural or Artificial Opening), 0C7M7ZZ (Dilation of Pharynx, Via Natural or Artificial Opening) and 0C7M8DZ (Dilation of Pharynx with Intraluminal Device, Via Natural or Artificial Opening Endoscopic). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 29.91

What is the ICD-10 code for ICD-9 29.91?

The GEMs map 29.91 to ICD-10-PCS 0C7M7DZ, 0C7M7ZZ, 0C7M8DZ and 0C7M8ZZ.

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.