2023

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  5. 2023 ICD-10-CM Diagnosis Code M63

2023 ICD-10-CM Diagnosis Code M63

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Disorders of muscle in diseases classified elsewhere

    2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
  • M63 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2023 edition of ICD-10-CM M63 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of M63 - other international versions of ICD-10 M63 may differ.
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 2022 2023 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 2022 2023 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 2022 2023 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 2022 2023 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 2022 2023 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
    G73.7
    )
  • myopathy in metabolic diseases (
    ICD-10-CM Diagnosis Code G73.7

    Myopathy in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 2022 2023 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
    G73.7
    )
  • myopathy in sarcoidosis (
    ICD-10-CM Diagnosis Code D86.87

    Sarcoid myositis

      2016 2017 2018 2019 2020 2021 2022 2023 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 2022 2023 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 2022 2023 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 2022 2023 Billable/Specific Code
    B58.82
    )
  • myopathy in tuberculosis (
    ICD-10-CM Diagnosis Code A18.09

    Other musculoskeletal tuberculosis

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    • Tuberculous myositis
    • Tuberculous synovitis
    • Tuberculous tenosynovitis
    A18.09
    )
The following code(s) above M63 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M63:
  • M00-M99
    2023 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • 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)
    Diseases of the musculoskeletal system and connective tissue
  • M60-M63
    2023 ICD-10-CM Range M60-M63

    Disorders of muscles

    Type 1 Excludes
    • dermatopolymyositis (M33.-)
    • myopathy in amyloidosis (E85.-)
    • myopathy in polyarteritis nodosa (M30.0)
    • myopathy in rheumatoid arthritis (M05.32)
    • myopathy in scleroderma (M34.-)
    • myopathy in Sjögren's syndrome (M35.03)
    • myopathy in systemic lupus erythematosus (M32.-)
    Type 2 Excludes
    • muscular dystrophies and myopathies (G71-G72)
    Disorders of muscles
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
ICD-10-CM Codes Adjacent To M63
M62.8 Other specified disorders of muscle
M62.81 Muscle weakness (generalized)
M62.82 Rhabdomyolysis
M62.83 Muscle spasm
M62.830 …… of back
M62.831 …… of calf
M62.838 Other muscle spasm
M62.84 Sarcopenia
M62.89 Other specified disorders of muscle
M62.9 Disorder of muscle, unspecified
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

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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