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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  • M84.475—

    Pathological fracture, left foot

  • M84.475A—

    Pathological fracture, left foot, initial encounter for fracture

  • M84.475D—

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

  • M84.475G—

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

  • M84.475K—

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

  • M84.475P—

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

  • M84.475S—

    Pathological fracture, left foot, sequela

  • M84.476—

    Pathological fracture, unspecified foot

  • M84.476A—

    Pathological fracture, unspecified foot, initial encounter for fracture

  • M84.476D—

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

  • M84.476G—

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

  • M84.476K—

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

  • M84.476P—

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

  • M84.476S—

    Pathological fracture, unspecified foot, sequela

  • M84.477—

    Pathological fracture, right toe(s)

  • M84.477A—

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

  • M84.477D—

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

  • M84.477G—

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

  • M84.477K—

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

  • M84.477P—

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

  • M84.477S—

    Pathological fracture, right toe(s), sequela

  • M84.478—

    Pathological fracture, left toe(s)

  • M84.478A—

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

  • M84.478D—

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

  • M84.478G—

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

  • M84.478K—

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

  • M84.478P—

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

  • M84.478S—

    Pathological fracture, left toe(s), sequela

  • M84.479—

    Pathological fracture, unspecified toe(s)

  • M84.479A—

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

  • M84.479D—

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

  • M84.479G—

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

  • M84.479K—

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

  • M84.479P—

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

  • M84.479S—

    Pathological fracture, unspecified toe(s), sequela

  • M84.48—

    Pathological fracture, other site

  • M84.48XA—

    Pathological fracture, other site, initial encounter for fracture

  • M84.48XD—

    Pathological fracture, other site, subsequent encounter for fracture with routine healing

  • M84.48XG—

    Pathological fracture, other site, subsequent encounter for fracture with delayed healing

  • M84.48XK—

    Pathological fracture, other site, subsequent encounter for fracture with nonunion

  • M84.48XP—

    Pathological fracture, other site, subsequent encounter for fracture with malunion

  • M84.48XS—

    Pathological fracture, other site, sequela

  • M84.50—

    Pathological fracture in neoplastic disease, unspecified site

  • M84.50XA—

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

  • M84.50XD—

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

  • M84.50XG—

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

  • M84.50XK—

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

  • M84.50XP—

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

  • M84.50XS—

    Pathological fracture in neoplastic disease, unspecified site, sequela

  • M84.511—

    Pathological fracture in neoplastic disease, right shoulder

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