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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  • M84.339K—

    Stress fracture, unspecified ulna and radius, subsequent encounter for fracture with nonunion

  • M84.339P—

    Stress fracture, unspecified ulna and radius, subsequent encounter for fracture with malunion

  • M84.339S—

    Stress fracture, unspecified ulna and radius, sequela

  • M84.34—

    Stress fracture, hand and fingers

  • M84.341—

    Stress fracture, right hand

  • M84.341A—

    Stress fracture, right hand, initial encounter for fracture

  • M84.341D—

    Stress fracture, right hand, subsequent encounter for fracture with routine healing

  • M84.341G—

    Stress fracture, right hand, subsequent encounter for fracture with delayed healing

  • M84.341K—

    Stress fracture, right hand, subsequent encounter for fracture with nonunion

  • M84.341P—

    Stress fracture, right hand, subsequent encounter for fracture with malunion

  • M84.341S—

    Stress fracture, right hand, sequela

  • M84.342—

    Stress fracture, left hand

  • M84.342A—

    Stress fracture, left hand, initial encounter for fracture

  • M84.342D—

    Stress fracture, left hand, subsequent encounter for fracture with routine healing

  • M84.342G—

    Stress fracture, left hand, subsequent encounter for fracture with delayed healing

  • M84.342K—

    Stress fracture, left hand, subsequent encounter for fracture with nonunion

  • M84.342P—

    Stress fracture, left hand, subsequent encounter for fracture with malunion

  • M84.342S—

    Stress fracture, left hand, sequela

  • M84.343—

    Stress fracture, unspecified hand

  • M84.343A—

    Stress fracture, unspecified hand, initial encounter for fracture

  • M84.343D—

    Stress fracture, unspecified hand, subsequent encounter for fracture with routine healing

  • M84.343G—

    Stress fracture, unspecified hand, subsequent encounter for fracture with delayed healing

  • M84.343K—

    Stress fracture, unspecified hand, subsequent encounter for fracture with nonunion

  • M84.343P—

    Stress fracture, unspecified hand, subsequent encounter for fracture with malunion

  • M84.343S—

    Stress fracture, unspecified hand, sequela

  • M84.344—

    Stress fracture, right finger(s)

  • M84.344A—

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

  • M84.344D—

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

  • M84.344G—

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

  • M84.344K—

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

  • M84.344P—

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

  • M84.344S—

    Stress fracture, right finger(s), sequela

  • M84.345—

    Stress fracture, left finger(s)

  • M84.345A—

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

  • M84.345D—

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

  • M84.345G—

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

  • M84.345K—

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

  • M84.345P—

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

  • M84.345S—

    Stress fracture, left finger(s), sequela

  • M84.346—

    Stress fracture, unspecified finger(s)

  • M84.346A—

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

  • M84.346D—

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

  • M84.346G—

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

  • M84.346K—

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

  • M84.346P—

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

  • M84.346S—

    Stress fracture, unspecified finger(s), sequela

  • M84.35—

    Stress fracture, pelvis and femur

  • M84.350—

    Stress fracture, pelvis

  • M84.350A—

    Stress fracture, pelvis, initial encounter for fracture

  • M84.350D—

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

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