All ICD10 Codes
Chapter 13

M00–M99: Diseases of the Musculoskeletal System and Connective Tissue

Diseases of the Musculoskeletal System and Connective Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
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  • M84.621S—

    Pathological fracture in other disease, right humerus, sequela

  • M84.622—

    Pathological fracture in other disease, left humerus

  • M84.622A—

    Pathological fracture in other disease, left humerus, initial encounter for fracture

  • M84.622D—

    Pathological fracture in other disease, left humerus, subsequent encounter for fracture with routine healing

  • M84.622G—

    Pathological fracture in other disease, left humerus, subsequent encounter for fracture with delayed healing

  • M84.622K—

    Pathological fracture in other disease, left humerus, subsequent encounter for fracture with nonunion

  • M84.622P—

    Pathological fracture in other disease, left humerus, subsequent encounter for fracture with malunion

  • M84.622S—

    Pathological fracture in other disease, left humerus, sequela

  • M84.629—

    Pathological fracture in other disease, unspecified humerus

  • M84.629A—

    Pathological fracture in other disease, unspecified humerus, initial encounter for fracture

  • M84.629D—

    Pathological fracture in other disease, unspecified humerus, subsequent encounter for fracture with routine healing

  • M84.629G—

    Pathological fracture in other disease, unspecified humerus, subsequent encounter for fracture with delayed healing

  • M84.629K—

    Pathological fracture in other disease, unspecified humerus, subsequent encounter for fracture with nonunion

  • M84.629P—

    Pathological fracture in other disease, unspecified humerus, subsequent encounter for fracture with malunion

  • M84.629S—

    Pathological fracture in other disease, unspecified humerus, sequela

  • M84.631—

    Pathological fracture in other disease, right ulna

  • M84.631A—

    Pathological fracture in other disease, right ulna, initial encounter for fracture

  • M84.631D—

    Pathological fracture in other disease, right ulna, subsequent encounter for fracture with routine healing

  • M84.631G—

    Pathological fracture in other disease, right ulna, subsequent encounter for fracture with delayed healing

  • M84.631K—

    Pathological fracture in other disease, right ulna, subsequent encounter for fracture with nonunion

  • M84.631P—

    Pathological fracture in other disease, right ulna, subsequent encounter for fracture with malunion

  • M84.631S—

    Pathological fracture in other disease, right ulna, sequela

  • M84.632—

    Pathological fracture in other disease, left ulna

  • M84.632A—

    Pathological fracture in other disease, left ulna, initial encounter for fracture

  • M84.632D—

    Pathological fracture in other disease, left ulna, subsequent encounter for fracture with routine healing

  • M84.632G—

    Pathological fracture in other disease, left ulna, subsequent encounter for fracture with delayed healing

  • M84.632K—

    Pathological fracture in other disease, left ulna, subsequent encounter for fracture with nonunion

  • M84.632P—

    Pathological fracture in other disease, left ulna, subsequent encounter for fracture with malunion

  • M84.632S—

    Pathological fracture in other disease, left ulna, sequela

  • M84.633—

    Pathological fracture in other disease, right radius

  • M84.633A—

    Pathological fracture in other disease, right radius, initial encounter for fracture

  • M84.633D—

    Pathological fracture in other disease, right radius, subsequent encounter for fracture with routine healing

  • M84.633G—

    Pathological fracture in other disease, right radius, subsequent encounter for fracture with delayed healing

  • M84.633K—

    Pathological fracture in other disease, right radius, subsequent encounter for fracture with nonunion

  • M84.633P—

    Pathological fracture in other disease, right radius, subsequent encounter for fracture with malunion

  • M84.633S—

    Pathological fracture in other disease, right radius, sequela

  • M84.634—

    Pathological fracture in other disease, left radius

  • M84.634A—

    Pathological fracture in other disease, left radius, initial encounter for fracture

  • M84.634D—

    Pathological fracture in other disease, left radius, subsequent encounter for fracture with routine healing

  • M84.634G—

    Pathological fracture in other disease, left radius, subsequent encounter for fracture with delayed healing

  • M84.634K—

    Pathological fracture in other disease, left radius, subsequent encounter for fracture with nonunion

  • M84.634P—

    Pathological fracture in other disease, left radius, subsequent encounter for fracture with malunion

  • M84.634S—

    Pathological fracture in other disease, left radius, sequela

  • M84.639—

    Pathological fracture in other disease, unspecified ulna and radius

  • M84.639A—

    Pathological fracture in other disease, unspecified ulna and radius, initial encounter for fracture

  • M84.639D—

    Pathological fracture in other disease, unspecified ulna and radius, subsequent encounter for fracture with routine healing

  • M84.639G—

    Pathological fracture in other disease, unspecified ulna and radius, subsequent encounter for fracture with delayed healing

  • M84.639K—

    Pathological fracture in other disease, unspecified ulna and radius, subsequent encounter for fracture with nonunion

  • M84.639P—

    Pathological fracture in other disease, unspecified ulna and radius, subsequent encounter for fracture with malunion

  • M84.639S—

    Pathological fracture in other disease, unspecified ulna and radius, sequela

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