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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  • M84.539S—

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

  • M84.54—

    Pathological fracture in neoplastic disease, hand

  • M84.541—

    Pathological fracture in neoplastic disease, right hand

  • M84.541A—

    Pathological fracture in neoplastic disease, right hand, initial encounter for fracture

  • M84.541D—

    Pathological fracture in neoplastic disease, right hand, subsequent encounter for fracture with routine healing

  • M84.541G—

    Pathological fracture in neoplastic disease, right hand, subsequent encounter for fracture with delayed healing

  • M84.541K—

    Pathological fracture in neoplastic disease, right hand, subsequent encounter for fracture with nonunion

  • M84.541P—

    Pathological fracture in neoplastic disease, right hand, subsequent encounter for fracture with malunion

  • M84.541S—

    Pathological fracture in neoplastic disease, right hand, sequela

  • M84.542—

    Pathological fracture in neoplastic disease, left hand

  • M84.542A—

    Pathological fracture in neoplastic disease, left hand, initial encounter for fracture

  • M84.542D—

    Pathological fracture in neoplastic disease, left hand, subsequent encounter for fracture with routine healing

  • M84.542G—

    Pathological fracture in neoplastic disease, left hand, subsequent encounter for fracture with delayed healing

  • M84.542K—

    Pathological fracture in neoplastic disease, left hand, subsequent encounter for fracture with nonunion

  • M84.542P—

    Pathological fracture in neoplastic disease, left hand, subsequent encounter for fracture with malunion

  • M84.542S—

    Pathological fracture in neoplastic disease, left hand, sequela

  • M84.549—

    Pathological fracture in neoplastic disease, unspecified hand

  • M84.549A—

    Pathological fracture in neoplastic disease, unspecified hand, initial encounter for fracture

  • M84.549D—

    Pathological fracture in neoplastic disease, unspecified hand, subsequent encounter for fracture with routine healing

  • M84.549G—

    Pathological fracture in neoplastic disease, unspecified hand, subsequent encounter for fracture with delayed healing

  • M84.549K—

    Pathological fracture in neoplastic disease, unspecified hand, subsequent encounter for fracture with nonunion

  • M84.549P—

    Pathological fracture in neoplastic disease, unspecified hand, subsequent encounter for fracture with malunion

  • M84.549S—

    Pathological fracture in neoplastic disease, unspecified hand, sequela

  • M84.55—

    Pathological fracture in neoplastic disease, pelvis and femur

  • M84.550—

    Pathological fracture in neoplastic disease, pelvis

  • M84.550A—

    Pathological fracture in neoplastic disease, pelvis, initial encounter for fracture

  • M84.550D—

    Pathological fracture in neoplastic disease, pelvis, subsequent encounter for fracture with routine healing

  • M84.550G—

    Pathological fracture in neoplastic disease, pelvis, subsequent encounter for fracture with delayed healing

  • M84.550K—

    Pathological fracture in neoplastic disease, pelvis, subsequent encounter for fracture with nonunion

  • M84.550P—

    Pathological fracture in neoplastic disease, pelvis, subsequent encounter for fracture with malunion

  • M84.550S—

    Pathological fracture in neoplastic disease, pelvis, sequela

  • M84.551—

    Pathological fracture in neoplastic disease, right femur

  • M84.551A—

    Pathological fracture in neoplastic disease, right femur, initial encounter for fracture

  • M84.551D—

    Pathological fracture in neoplastic disease, right femur, subsequent encounter for fracture with routine healing

  • M84.551G—

    Pathological fracture in neoplastic disease, right femur, subsequent encounter for fracture with delayed healing

  • M84.551K—

    Pathological fracture in neoplastic disease, right femur, subsequent encounter for fracture with nonunion

  • M84.551P—

    Pathological fracture in neoplastic disease, right femur, subsequent encounter for fracture with malunion

  • M84.551S—

    Pathological fracture in neoplastic disease, right femur, sequela

  • M84.552—

    Pathological fracture in neoplastic disease, left femur

  • M84.552A—

    Pathological fracture in neoplastic disease, left femur, initial encounter for fracture

  • M84.552D—

    Pathological fracture in neoplastic disease, left femur, subsequent encounter for fracture with routine healing

  • M84.552G—

    Pathological fracture in neoplastic disease, left femur, subsequent encounter for fracture with delayed healing

  • M84.552K—

    Pathological fracture in neoplastic disease, left femur, subsequent encounter for fracture with nonunion

  • M84.552P—

    Pathological fracture in neoplastic disease, left femur, subsequent encounter for fracture with malunion

  • M84.552S—

    Pathological fracture in neoplastic disease, left femur, sequela

  • M84.553—

    Pathological fracture in neoplastic disease, unspecified femur

  • M84.553A—

    Pathological fracture in neoplastic disease, unspecified femur, initial encounter for fracture

  • M84.553D—

    Pathological fracture in neoplastic disease, unspecified femur, subsequent encounter for fracture with routine healing

  • M84.553G—

    Pathological fracture in neoplastic disease, unspecified femur, subsequent encounter for fracture with delayed healing

  • M84.553K—

    Pathological fracture in neoplastic disease, unspecified femur, subsequent encounter for fracture with nonunion

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