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ICD-9-CM diagnosis code (retired)

288.51 — Lymphocytopenia

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 288.51

288.51 is an ICD-9-CM diagnosis code for Lymphocytopenia. 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, D72.810 (Lymphocytopenia). The match is exact.

ICD-10-CM equivalents

Common questions about 288.51

What is the ICD-10 code for ICD-9 288.51?

The GEMs map 288.51 to ICD-10-CM D72.810.

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.