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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  • M84.563K—

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

  • M84.563P—

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

  • M84.563S—

    Pathological fracture in neoplastic disease, right fibula, sequela

  • M84.564—

    Pathological fracture in neoplastic disease, left fibula

  • M84.564A—

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

  • M84.564D—

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

  • M84.564G—

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

  • M84.564K—

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

  • M84.564P—

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

  • M84.564S—

    Pathological fracture in neoplastic disease, left fibula, sequela

  • M84.569—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula

  • M84.569A—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula, initial encounter for fracture

  • M84.569D—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula, subsequent encounter for fracture with routine healing

  • M84.569G—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula, subsequent encounter for fracture with delayed healing

  • M84.569K—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula, subsequent encounter for fracture with nonunion

  • M84.569P—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula, subsequent encounter for fracture with malunion

  • M84.569S—

    Pathological fracture in neoplastic disease, unspecified tibia and fibula, sequela

  • M84.571—

    Pathological fracture in neoplastic disease, right ankle

  • M84.571A—

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

  • M84.571D—

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

  • M84.571G—

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

  • M84.571K—

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

  • M84.571P—

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

  • M84.571S—

    Pathological fracture in neoplastic disease, right ankle, sequela

  • M84.572—

    Pathological fracture in neoplastic disease, left ankle

  • M84.572A—

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

  • M84.572D—

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

  • M84.572G—

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

  • M84.572K—

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

  • M84.572P—

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

  • M84.572S—

    Pathological fracture in neoplastic disease, left ankle, sequela

  • M84.573—

    Pathological fracture in neoplastic disease, unspecified ankle

  • M84.573A—

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

  • M84.573D—

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

  • M84.573G—

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

  • M84.573K—

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

  • M84.573P—

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

  • M84.573S—

    Pathological fracture in neoplastic disease, unspecified ankle, sequela

  • M84.574—

    Pathological fracture in neoplastic disease, right foot

  • M84.574A—

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

  • M84.574D—

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

  • M84.574G—

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

  • M84.574K—

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

  • M84.574P—

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

  • M84.574S—

    Pathological fracture in neoplastic disease, right foot, sequela

  • M84.575—

    Pathological fracture in neoplastic disease, left foot

  • M84.575A—

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

  • M84.575D—

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

  • M84.575G—

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

  • M84.575K—

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

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