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ICD-9-CM procedure code (retired)

81.91 — Arthrocentesis

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 81.91

81.91 is an ICD-9-CM procedure code for Arthrocentesis. 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 196 ICD-10-PCS codes, such as 0R9030Z (Drainage of Occipital-cervical Joint with Drainage Device, Percutaneous Approach), 0R903ZZ (Drainage of Occipital-cervical Joint, Percutaneous Approach) and 0R9040Z (Drainage of Occipital-cervical Joint with Drainage Device, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 81.91

What is the ICD-10 code for ICD-9 81.91?

The GEMs map 81.91 to ICD-10-PCS 0R9030Z, 0R903ZZ, 0R9040Z, 0R904ZZ, 0R9130Z, 0R913ZZ and 190 more.

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.