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M66.9 - Spontaneous rupture of unspecified tendon


The ICD 10 Code for Spontaneous rupture of unspecified tendon is listed as M66.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: M66.9
Description: Spontaneous rupture of unspecified tendon
  • Rupture at musculotendinous junction, nontraumatic
Diagnostic Related Groups
(MS-DRG v30.0)
557 - Tendonitis, Myositis & Bursitis W Mcc
558 - Tendonitis, Myositis & Bursitis W/o Mcc
Chapter Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block Disorders of synovium and tendon (M65-M67)
Parent M66 - Spontaneous rupture of synovium and tendon
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 727.60 - Nontraumatic rupture of unspecified tendon (approximate)
ICD-10-CM Siblings (same level / similar specificity) of M66.9:
M66.0 - Rupture of popliteal cyst
M66.1 - Rupture of synovium
M66.2 - Spontaneous rupture of extensor tendons
M66.3 - Spontaneous rupture of flexor tendons
M66.8 - Spontaneous rupture of other tendons