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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  • M84.432A—

    Pathological fracture, left ulna, initial encounter for fracture

  • M84.432D—

    Pathological fracture, left ulna, subsequent encounter for fracture with routine healing

  • M84.432G—

    Pathological fracture, left ulna, subsequent encounter for fracture with delayed healing

  • M84.432K—

    Pathological fracture, left ulna, subsequent encounter for fracture with nonunion

  • M84.432P—

    Pathological fracture, left ulna, subsequent encounter for fracture with malunion

  • M84.432S—

    Pathological fracture, left ulna, sequela

  • M84.433—

    Pathological fracture, right radius

  • M84.433A—

    Pathological fracture, right radius, initial encounter for fracture

  • M84.433D—

    Pathological fracture, right radius, subsequent encounter for fracture with routine healing

  • M84.433G—

    Pathological fracture, right radius, subsequent encounter for fracture with delayed healing

  • M84.433K—

    Pathological fracture, right radius, subsequent encounter for fracture with nonunion

  • M84.433P—

    Pathological fracture, right radius, subsequent encounter for fracture with malunion

  • M84.433S—

    Pathological fracture, right radius, sequela

  • M84.434—

    Pathological fracture, left radius

  • M84.434A—

    Pathological fracture, left radius, initial encounter for fracture

  • M84.434D—

    Pathological fracture, left radius, subsequent encounter for fracture with routine healing

  • M84.434G—

    Pathological fracture, left radius, subsequent encounter for fracture with delayed healing

  • M84.434K—

    Pathological fracture, left radius, subsequent encounter for fracture with nonunion

  • M84.434P—

    Pathological fracture, left radius, subsequent encounter for fracture with malunion

  • M84.434S—

    Pathological fracture, left radius, sequela

  • M84.439—

    Pathological fracture, unspecified ulna and radius

  • M84.439A—

    Pathological fracture, unspecified ulna and radius, initial encounter for fracture

  • M84.439D—

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

  • M84.439G—

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

  • M84.439K—

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

  • M84.439P—

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

  • M84.439S—

    Pathological fracture, unspecified ulna and radius, sequela

  • M84.44—

    Pathological fracture, hand and fingers

  • M84.441—

    Pathological fracture, right hand

  • M84.441A—

    Pathological fracture, right hand, initial encounter for fracture

  • M84.441D—

    Pathological fracture, right hand, subsequent encounter for fracture with routine healing

  • M84.441G—

    Pathological fracture, right hand, subsequent encounter for fracture with delayed healing

  • M84.441K—

    Pathological fracture, right hand, subsequent encounter for fracture with nonunion

  • M84.441P—

    Pathological fracture, right hand, subsequent encounter for fracture with malunion

  • M84.441S—

    Pathological fracture, right hand, sequela

  • M84.442—

    Pathological fracture, left hand

  • M84.442A—

    Pathological fracture, left hand, initial encounter for fracture

  • M84.442D—

    Pathological fracture, left hand, subsequent encounter for fracture with routine healing

  • M84.442G—

    Pathological fracture, left hand, subsequent encounter for fracture with delayed healing

  • M84.442K—

    Pathological fracture, left hand, subsequent encounter for fracture with nonunion

  • M84.442P—

    Pathological fracture, left hand, subsequent encounter for fracture with malunion

  • M84.442S—

    Pathological fracture, left hand, sequela

  • M84.443—

    Pathological fracture, unspecified hand

  • M84.443A—

    Pathological fracture, unspecified hand, initial encounter for fracture

  • M84.443D—

    Pathological fracture, unspecified hand, subsequent encounter for fracture with routine healing

  • M84.443G—

    Pathological fracture, unspecified hand, subsequent encounter for fracture with delayed healing

  • M84.443K—

    Pathological fracture, unspecified hand, subsequent encounter for fracture with nonunion

  • M84.443P—

    Pathological fracture, unspecified hand, subsequent encounter for fracture with malunion

  • M84.443S—

    Pathological fracture, unspecified hand, sequela

  • M84.444—

    Pathological fracture, right finger(s)

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