Disorders of muscle in diseases classified elsewhere M63-

Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • underlying disease, such as:
  • leprosy (
    ICD-10-CM Diagnosis Code A30
    • A30 Leprosy [Hansen's disease]
      • A30.0 Indeterminate leprosy
      • A30.1 Tuberculoid leprosy
      • A30.2 Borderline tuberculoid leprosy
      • A30.3 Borderline leprosy
      • A30.4 Borderline lepromatous leprosy
      • A30.5 Lepromatous leprosy
      • A30.8 Other forms of leprosy
      • A30.9 Leprosy, unspecified
    A30.-
    )
  • neoplasm (
    ICD-10-CM Diagnosis Code C49
    • C49 Malignant neoplasm of other connective and so...
      • C49.0 Malignant neoplasm of connective and soft tis...
      • C49.1 Malignant neoplasm of connective and soft tis...
        • C49.10 Malignant neoplasm of connective and soft tis...
        • C49.11 Malignant neoplasm of connective and soft tis...
        • C49.12 Malignant neoplasm of connective and soft tis...
      • C49.2 Malignant neoplasm of connective and soft tis...
        • C49.20 Malignant neoplasm of connective and soft tis...
        • C49.21 Malignant neoplasm of connective and soft tis...
        • C49.22 Malignant neoplasm of connective and soft tis...
      • C49.3 Malignant neoplasm of connective and soft tis...
      • C49.4 Malignant neoplasm of connective and soft tis...
      • C49.5 Malignant neoplasm of connective and soft tis...
      • C49.6 Malignant neoplasm of connective and soft tis...
      • C49.8 Malignant neoplasm of overlapping sites of co...
      • C49.9 Malignant neoplasm of connective and soft tis...
      • C49.A Gastrointestinal stromal tumor
        • C49.A0 Gastrointestinal stromal tumor, unspecified s...
        • C49.A1 …… of esophagus
        • C49.A2 …… of stomach
        • C49.A3 Gastrointestinal stromal tumor of small intes...
        • C49.A4 Gastrointestinal stromal tumor of large intes...
        • C49.A5 …… of rectum
        • C49.A9 Gastrointestinal stromal tumor of other sites...
    C49.-
    ,
    ICD-10-CM Diagnosis Code C79.89

    Secondary malignant neoplasm of other specified sites

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    C79.89
    ,
    ICD-10-CM Diagnosis Code D21
    • D21 Other benign neoplasms of connective and othe...
      • D21.0 Benign neoplasm of connective and other soft ...
      • D21.1 Benign neoplasm of connective and other soft ...
        • D21.10 Benign neoplasm of connective and other soft ...
        • D21.11 Benign neoplasm of connective and other soft ...
        • D21.12 Benign neoplasm of connective and other soft ...
      • D21.2 Benign neoplasm of connective and other soft ...
        • D21.20 Benign neoplasm of connective and other soft ...
        • D21.21 Benign neoplasm of connective and other soft ...
        • D21.22 Benign neoplasm of connective and other soft ...
      • D21.3 Benign neoplasm of connective and other soft ...
      • D21.4 Benign neoplasm of connective and other soft ...
      • D21.5 Benign neoplasm of connective and other soft ...
      • D21.6 Benign neoplasm of connective and other soft ...
      • D21.9 Benign neoplasm of connective and other soft ...
    D21.-
    ,
    ICD-10-CM Diagnosis Code D48.1

    Neoplasm of uncertain behavior of connective and other soft tissue

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Neoplasm of uncertain behavior of connective tissue of ear
    • Neoplasm of uncertain behavior of connective tissue of eyelid
    • Stromal tumors of uncertain behavior of digestive system
    Type 1 Excludes
    • neoplasm of uncertain behavior of articular cartilage (D48.0)
    • neoplasm of uncertain behavior of cartilage of larynx (D38.0)
    • neoplasm of uncertain behavior of cartilage of nose (D38.5)
    • neoplasm of uncertain behavior of connective tissue of breast (D48.6-)
    D48.1
    )
  • schistosomiasis (
    ICD-10-CM Diagnosis Code B65
    • B65 Schistosomiasis [bilharziasis]
      • B65.0 Schistosomiasis due to Schistosoma haematobiu...
      • B65.1 Schistosomiasis due to Schistosoma mansoni [i...
      • B65.2 Schistosomiasis due to Schistosoma japonicum
      • B65.3 Cercarial dermatitis
      • B65.8 Other schistosomiasis
      • B65.9 Schistosomiasis, unspecified
    B65.-
    )
  • trichinellosis (
    ICD-10-CM Diagnosis Code B75

    Trichinellosis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Includes
    • infection due to Trichinella species
    • trichiniasis
    B75
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M63. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • myopathy in cysticercosis (
    ICD-10-CM Diagnosis Code B69.81

    Myositis in cysticercosis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    B69.81
    )
  • myopathy in endocrine diseases (
    ICD-10-CM Diagnosis Code G73.7

    Myopathy in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease, such as:
    • hyperparathyroidism (E21.0, E21.3)
    • hypoparathyroidism (E20.-)
    • glycogen storage disease (E74.0)
    • lipid storage disorders (E75.-)
    Type 1 Excludes
    • myopathy in:
    • rheumatoid arthritis (M05.32)
    • sarcoidosis (D86.87)
    • scleroderma (M34.82)
    • sicca syndrome [Sjögren] (M35.03)
    • systemic lupus erythematosus (M32.19)
    G73.7
    )
  • myopathy in metabolic diseases (
    ICD-10-CM Diagnosis Code G73.7

    Myopathy in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease, such as:
    • hyperparathyroidism (E21.0, E21.3)
    • hypoparathyroidism (E20.-)
    • glycogen storage disease (E74.0)
    • lipid storage disorders (E75.-)
    Type 1 Excludes
    • myopathy in:
    • rheumatoid arthritis (M05.32)
    • sarcoidosis (D86.87)
    • scleroderma (M34.82)
    • sicca syndrome [Sjögren] (M35.03)
    • systemic lupus erythematosus (M32.19)
    G73.7
    )
  • myopathy in sarcoidosis (
    ICD-10-CM Diagnosis Code D86.87

    Sarcoid myositis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    D86.87
    )
  • myopathy in secondary syphilis (
    ICD-10-CM Diagnosis Code A51.49

    Other secondary syphilitic conditions

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Secondary syphilitic lymphadenopathy
    • Secondary syphilitic myositis
    A51.49
    )
  • myopathy in syphilis (late) (
    ICD-10-CM Diagnosis Code A52.78

    Syphilis of other musculoskeletal tissue

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Late syphilitic bursitis
    • Syphilis [stage unspecified] of bursa
    • Syphilis [stage unspecified] of muscle
    • Syphilis [stage unspecified] of synovium
    • Syphilis [stage unspecified] of tendon
    A52.78
    )
  • myopathy in toxoplasmosis (
    ICD-10-CM Diagnosis Code B58.82

    Toxoplasma myositis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    B58.82
    )
  • myopathy in tuberculosis (
    ICD-10-CM Diagnosis Code A18.09

    Other musculoskeletal tuberculosis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Tuberculous myositis
    • Tuberculous synovitis
    • Tuberculous tenosynovitis
    A18.09
    )
Codes
  • M63 Disorders of muscle in diseases classified elsewhere
    • M63.8 Disorders of muscle in diseases classified elsewhere
      • M63.80 …… unspecified site
      • M63.81 Disorders of muscle in diseases classified elsewhere, shoulder
        • M63.811 Disorders of muscle in diseases classified elsewhere, right shoulder
        • M63.812 Disorders of muscle in diseases classified elsewhere, left shoulder
        • M63.819 Disorders of muscle in diseases classified elsewhere, unspecified shoulder
      • M63.82 Disorders of muscle in diseases classified elsewhere, upper arm
        • M63.821 Disorders of muscle in diseases classified elsewhere, right upper arm
        • M63.822 Disorders of muscle in diseases classified elsewhere, left upper arm
        • M63.829 Disorders of muscle in diseases classified elsewhere, unspecified upper arm
      • M63.83 Disorders of muscle in diseases classified elsewhere, forearm
        • M63.831 Disorders of muscle in diseases classified elsewhere, right forearm
        • M63.832 Disorders of muscle in diseases classified elsewhere, left forearm
        • M63.839 Disorders of muscle in diseases classified elsewhere, unspecified forearm
      • M63.84 Disorders of muscle in diseases classified elsewhere, hand
        • M63.841 Disorders of muscle in diseases classified elsewhere, right hand
        • M63.842 Disorders of muscle in diseases classified elsewhere, left hand
        • M63.849 Disorders of muscle in diseases classified elsewhere, unspecified hand
      • M63.85 Disorders of muscle in diseases classified elsewhere, thigh
        • M63.851 Disorders of muscle in diseases classified elsewhere, right thigh
        • M63.852 Disorders of muscle in diseases classified elsewhere, left thigh
        • M63.859 Disorders of muscle in diseases classified elsewhere, unspecified thigh
      • M63.86 Disorders of muscle in diseases classified elsewhere, lower leg
        • M63.861 Disorders of muscle in diseases classified elsewhere, right lower leg
        • M63.862 Disorders of muscle in diseases classified elsewhere, left lower leg
        • M63.869 Disorders of muscle in diseases classified elsewhere, unspecified lower leg
      • M63.87 Disorders of muscle in diseases classified elsewhere, ankle and foot
        • M63.871 Disorders of muscle in diseases classified elsewhere, right ankle and foot
        • M63.872 Disorders of muscle in diseases classified elsewhere, left ankle and foot
        • M63.879 Disorders of muscle in diseases classified elsewhere, unspecified ankle and foot
      • M63.88 …… other site
      • M63.89 …… multiple sites