Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes M00-M99 – Diseases of the musculoskeletal system and connective tissue (M00-M99) > 2024 ICD-10-CM Codes M65-M67 – Disorders of synovium and tendon (M65-M67) > 2024 ICD-10-CM Codes M65 – Synovitis and tenosynovitis (M65) > 2024 ICD-10-CM Codes M65.0 – Abscess of tendon sheath (M65.0) > 2024 ICD-10-CM Codes M65.02 – Abscess of tendon sheath, upper arm (M65.02)