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ICD-9-CM diagnosis code (retired)

327.23 — Obstructive sleep apnea (adult)(pediatric)

ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.

About ICD-9-CM 327.23

327.23 is an ICD-9-CM diagnosis code for obstructive sleep apnea (adult)(pediatric). ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.

The CMS General Equivalence Mappings translate it to one ICD-10-CM code, G47.33 (Obstructive sleep apnea (adult) (pediatric)). The match is exact.

ICD-10-CM equivalents

Common questions about 327.23

What is the ICD-10 code for ICD-9 327.23?

The GEMs map 327.23 to ICD-10-CM G47.33.

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.