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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  • M94.8X2—

    Other specified disorders of cartilage, upper arm

  • M94.8X3—

    Other specified disorders of cartilage, forearm

  • M94.8X4—

    Other specified disorders of cartilage, hand

  • M94.8X5—

    Other specified disorders of cartilage, thigh

  • M94.8X6—

    Other specified disorders of cartilage, lower leg

  • M94.8X7—

    Other specified disorders of cartilage, ankle and foot

  • M94.8X8—

    Other specified disorders of cartilage, other site

  • M94.8X9—

    Other specified disorders of cartilage, unspecified sites

  • M94.9—

    Disorder of cartilage, unspecified

  • M95—

    Other acquired deformities of musculoskeletal system and connective tissue

  • M95.0—

    Acquired deformity of nose

  • M95.1—

    Cauliflower ear

  • M95.10—

    Cauliflower ear, unspecified ear

  • M95.11—

    Cauliflower ear, right ear

  • M95.12—

    Cauliflower ear, left ear

  • M95.2—

    Other acquired deformity of head

  • M95.3—

    Acquired deformity of neck

  • M95.4—

    Acquired deformity of chest and rib

  • M95.5—

    Acquired deformity of pelvis

  • M95.8—

    Other specified acquired deformities of musculoskeletal system

  • M95.9—

    Acquired deformity of musculoskeletal system, unspecified

  • M96—

    Intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified

  • M96.0—

    Pseudarthrosis after fusion or arthrodesis

  • M96.1—

    Postlaminectomy syndrome, not elsewhere classified

  • M96.2—

    Postradiation kyphosis

  • M96.3—

    Postlaminectomy kyphosis

  • M96.4—

    Postsurgical lordosis

  • M96.5—

    Postradiation scoliosis

  • M96.6—

    Fracture of bone following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.62—

    Fracture of humerus following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.621—

    Fracture of humerus following insertion of orthopedic implant, joint prosthesis, or bone plate, right arm

  • M96.622—

    Fracture of humerus following insertion of orthopedic implant, joint prosthesis, or bone plate, left arm

  • M96.629—

    Fracture of humerus following insertion of orthopedic implant, joint prosthesis, or bone plate, unspecified arm

  • M96.63—

    Fracture of radius or ulna following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.631—

    Fracture of radius or ulna following insertion of orthopedic implant, joint prosthesis, or bone plate, right arm

  • M96.632—

    Fracture of radius or ulna following insertion of orthopedic implant, joint prosthesis, or bone plate, left arm

  • M96.639—

    Fracture of radius or ulna following insertion of orthopedic implant, joint prosthesis, or bone plate, unspecified arm

  • M96.65—

    Fracture of pelvis following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.66—

    Fracture of femur following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.661—

    Fracture of femur following insertion of orthopedic implant, joint prosthesis, or bone plate, right leg

  • M96.662—

    Fracture of femur following insertion of orthopedic implant, joint prosthesis, or bone plate, left leg

  • M96.669—

    Fracture of femur following insertion of orthopedic implant, joint prosthesis, or bone plate, unspecified leg

  • M96.67—

    Fracture of tibia or fibula following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.671—

    Fracture of tibia or fibula following insertion of orthopedic implant, joint prosthesis, or bone plate, right leg

  • M96.672—

    Fracture of tibia or fibula following insertion of orthopedic implant, joint prosthesis, or bone plate, left leg

  • M96.679—

    Fracture of tibia or fibula following insertion of orthopedic implant, joint prosthesis, or bone plate, unspecified leg

  • M96.69—

    Fracture of other bone following insertion of orthopedic implant, joint prosthesis, or bone plate

  • M96.8—

    Other intraoperative and postprocedural complications and disorders of musculoskeletal system, not elsewhere classified

  • M96.81—

    Intraoperative hemorrhage and hematoma of a musculoskeletal structure complicating a procedure

  • M96.810—

    Intraoperative hemorrhage and hematoma of a musculoskeletal structure complicating a musculoskeletal system procedure

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