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ICD-9-CM procedure code (retired)

99.28 — Injection or infusion of biological response modifier [BRM] as an antineoplastic agent

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 99.28

99.28 is an ICD-9-CM procedure code for injection or infusion of biological response modifier [BRM] as an antineoplastic agent. 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 11 ICD-10-PCS codes, such as 3E00X0M (Introduction of Antineoplastic, Monoclonal Antibody, into Skin and Mucous Membranes, External Approach), 3E0130M (Introduction of Antineoplastic, Monoclonal Antibody, into Subcutaneous Tissue, Percutaneous Approach) and 3E0230M (Introduction of Antineoplastic, Monoclonal Antibody, into Muscle, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 99.28

What is the ICD-10 code for ICD-9 99.28?

The GEMs map 99.28 to ICD-10-PCS 3E00X0M, 3E0130M, 3E0230M, 3E03303, 3E0330M, 3E04303 and 5 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.