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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  • M80.021A—

    Age-related osteoporosis with current pathological fracture, right humerus, initial encounter for fracture

  • M80.021D—

    Age-related osteoporosis with current pathological fracture, right humerus, subsequent encounter for fracture with routine healing

  • M80.021G—

    Age-related osteoporosis with current pathological fracture, right humerus, subsequent encounter for fracture with delayed healing

  • M80.021K—

    Age-related osteoporosis with current pathological fracture, right humerus, subsequent encounter for fracture with nonunion

  • M80.021P—

    Age-related osteoporosis with current pathological fracture, right humerus, subsequent encounter for fracture with malunion

  • M80.021S—

    Age-related osteoporosis with current pathological fracture, right humerus, sequela

  • M80.022—

    Age-related osteoporosis with current pathological fracture, left humerus

  • M80.022A—

    Age-related osteoporosis with current pathological fracture, left humerus, initial encounter for fracture

  • M80.022D—

    Age-related osteoporosis with current pathological fracture, left humerus, subsequent encounter for fracture with routine healing

  • M80.022G—

    Age-related osteoporosis with current pathological fracture, left humerus, subsequent encounter for fracture with delayed healing

  • M80.022K—

    Age-related osteoporosis with current pathological fracture, left humerus, subsequent encounter for fracture with nonunion

  • M80.022P—

    Age-related osteoporosis with current pathological fracture, left humerus, subsequent encounter for fracture with malunion

  • M80.022S—

    Age-related osteoporosis with current pathological fracture, left humerus, sequela

  • M80.029—

    Age-related osteoporosis with current pathological fracture, unspecified humerus

  • M80.029A—

    Age-related osteoporosis with current pathological fracture, unspecified humerus, initial encounter for fracture

  • M80.029D—

    Age-related osteoporosis with current pathological fracture, unspecified humerus, subsequent encounter for fracture with routine healing

  • M80.029G—

    Age-related osteoporosis with current pathological fracture, unspecified humerus, subsequent encounter for fracture with delayed healing

  • M80.029K—

    Age-related osteoporosis with current pathological fracture, unspecified humerus, subsequent encounter for fracture with nonunion

  • M80.029P—

    Age-related osteoporosis with current pathological fracture, unspecified humerus, subsequent encounter for fracture with malunion

  • M80.029S—

    Age-related osteoporosis with current pathological fracture, unspecified humerus, sequela

  • M80.031—

    Age-related osteoporosis with current pathological fracture, right forearm

  • M80.031A—

    Age-related osteoporosis with current pathological fracture, right forearm, initial encounter for fracture

  • M80.031D—

    Age-related osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with routine healing

  • M80.031G—

    Age-related osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with delayed healing

  • M80.031K—

    Age-related osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with nonunion

  • M80.031P—

    Age-related osteoporosis with current pathological fracture, right forearm, subsequent encounter for fracture with malunion

  • M80.031S—

    Age-related osteoporosis with current pathological fracture, right forearm, sequela

  • M80.032—

    Age-related osteoporosis with current pathological fracture, left forearm

  • M80.032A—

    Age-related osteoporosis with current pathological fracture, left forearm, initial encounter for fracture

  • M80.032D—

    Age-related osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with routine healing

  • M80.032G—

    Age-related osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with delayed healing

  • M80.032K—

    Age-related osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with nonunion

  • M80.032P—

    Age-related osteoporosis with current pathological fracture, left forearm, subsequent encounter for fracture with malunion

  • M80.032S—

    Age-related osteoporosis with current pathological fracture, left forearm, sequela

  • M80.039—

    Age-related osteoporosis with current pathological fracture, unspecified forearm

  • M80.039A—

    Age-related osteoporosis with current pathological fracture, unspecified forearm, initial encounter for fracture

  • M80.039D—

    Age-related osteoporosis with current pathological fracture, unspecified forearm, subsequent encounter for fracture with routine healing

  • M80.039G—

    Age-related osteoporosis with current pathological fracture, unspecified forearm, subsequent encounter for fracture with delayed healing

  • M80.039K—

    Age-related osteoporosis with current pathological fracture, unspecified forearm, subsequent encounter for fracture with nonunion

  • M80.039P—

    Age-related osteoporosis with current pathological fracture, unspecified forearm, subsequent encounter for fracture with malunion

  • M80.039S—

    Age-related osteoporosis with current pathological fracture, unspecified forearm, sequela

  • M80.041—

    Age-related osteoporosis with current pathological fracture, right hand

  • M80.041A—

    Age-related osteoporosis with current pathological fracture, right hand, initial encounter for fracture

  • M80.041D—

    Age-related osteoporosis with current pathological fracture, right hand, subsequent encounter for fracture with routine healing

  • M80.041G—

    Age-related osteoporosis with current pathological fracture, right hand, subsequent encounter for fracture with delayed healing

  • M80.041K—

    Age-related osteoporosis with current pathological fracture, right hand, subsequent encounter for fracture with nonunion

  • M80.041P—

    Age-related osteoporosis with current pathological fracture, right hand, subsequent encounter for fracture with malunion

  • M80.041S—

    Age-related osteoporosis with current pathological fracture, right hand, sequela

  • M80.042—

    Age-related osteoporosis with current pathological fracture, left hand

  • M80.042A—

    Age-related osteoporosis with current pathological fracture, left hand, initial encounter for fracture

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