M54.50 ICD-10 Code for Low Back Pain, Unspecified (2026 Guide)
ICD-10 code M54.50 for low back pain is the most frequently used musculoskeletal diagnosis code in outpatient billing. It covers low back pain, unspecified, and applies when a patient presents with lumbar pain but no specific underlying cause has been confirmed. Used correctly, it is a clean billable code. Used as a default when a […]