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ICD-9-CM procedure code (retired)

93.04 — Manual testing of muscle function

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 93.04

93.04 is an ICD-9-CM procedure code for manual testing of muscle function. 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 20 ICD-10-PCS codes, such as F01J0EZ (Muscle Performance Assessment of Musculoskeletal System - Head and Neck using Orthosis), F01J0FZ (Muscle Performance Assessment of Musculoskeletal System - Head and Neck using Assistive, Adaptive, Supportive or Protective Equipment) and F01J0UZ (Muscle Performance Assessment of Musculoskeletal System - Head and Neck using Prosthesis). All of these are approximate matches, so review the record to pick the right one.

ICD-10-PCS equivalents

Common questions about 93.04

What is the ICD-10 code for ICD-9 93.04?

The GEMs map 93.04 to ICD-10-PCS F01J0EZ, F01J0FZ, F01J0UZ, F01J0YZ, F01J0ZZ, F01K0EZ and 14 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.