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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  • M84.444A—

    Pathological fracture, right finger(s), initial encounter for fracture

  • M84.444D—

    Pathological fracture, right finger(s), subsequent encounter for fracture with routine healing

  • M84.444G—

    Pathological fracture, right finger(s), subsequent encounter for fracture with delayed healing

  • M84.444K—

    Pathological fracture, right finger(s), subsequent encounter for fracture with nonunion

  • M84.444P—

    Pathological fracture, right finger(s), subsequent encounter for fracture with malunion

  • M84.444S—

    Pathological fracture, right finger(s), sequela

  • M84.445—

    Pathological fracture, left finger(s)

  • M84.445A—

    Pathological fracture, left finger(s), initial encounter for fracture

  • M84.445D—

    Pathological fracture, left finger(s), subsequent encounter for fracture with routine healing

  • M84.445G—

    Pathological fracture, left finger(s), subsequent encounter for fracture with delayed healing

  • M84.445K—

    Pathological fracture, left finger(s), subsequent encounter for fracture with nonunion

  • M84.445P—

    Pathological fracture, left finger(s), subsequent encounter for fracture with malunion

  • M84.445S—

    Pathological fracture, left finger(s), sequela

  • M84.446—

    Pathological fracture, unspecified finger(s)

  • M84.446A—

    Pathological fracture, unspecified finger(s), initial encounter for fracture

  • M84.446D—

    Pathological fracture, unspecified finger(s), subsequent encounter for fracture with routine healing

  • M84.446G—

    Pathological fracture, unspecified finger(s), subsequent encounter for fracture with delayed healing

  • M84.446K—

    Pathological fracture, unspecified finger(s), subsequent encounter for fracture with nonunion

  • M84.446P—

    Pathological fracture, unspecified finger(s), subsequent encounter for fracture with malunion

  • M84.446S—

    Pathological fracture, unspecified finger(s), sequela

  • M84.45—

    Pathological fracture, femur and pelvis

  • M84.451—

    Pathological fracture, right femur

  • M84.451A—

    Pathological fracture, right femur, initial encounter for fracture

  • M84.451D—

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

  • M84.451G—

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

  • M84.451K—

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

  • M84.451P—

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

  • M84.451S—

    Pathological fracture, right femur, sequela

  • M84.452—

    Pathological fracture, left femur

  • M84.452A—

    Pathological fracture, left femur, initial encounter for fracture

  • M84.452D—

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

  • M84.452G—

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

  • M84.452K—

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

  • M84.452P—

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

  • M84.452S—

    Pathological fracture, left femur, sequela

  • M84.453—

    Pathological fracture, unspecified femur

  • M84.453A—

    Pathological fracture, unspecified femur, initial encounter for fracture

  • M84.453D—

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

  • M84.453G—

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

  • M84.453K—

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

  • M84.453P—

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

  • M84.453S—

    Pathological fracture, unspecified femur, sequela

  • M84.454—

    Pathological fracture, pelvis

  • M84.454A—

    Pathological fracture, pelvis, initial encounter for fracture

  • M84.454D—

    Pathological fracture, pelvis, subsequent encounter for fracture with routine healing

  • M84.454G—

    Pathological fracture, pelvis, subsequent encounter for fracture with delayed healing

  • M84.454K—

    Pathological fracture, pelvis, subsequent encounter for fracture with nonunion

  • M84.454P—

    Pathological fracture, pelvis, subsequent encounter for fracture with malunion

  • M84.454S—

    Pathological fracture, pelvis, sequela

  • M84.459—

    Pathological fracture, hip, unspecified

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