2019 ICD-10-CM Diagnosis Code G73.7

Myopathy in diseases classified elsewhere

ICD-10-CM Coding Rules
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:
  • hyperparathyroidism (
    ICD-10-CM Diagnosis Code E21.0

    Primary hyperparathyroidism

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Hyperplasia of parathyroid
    • Osteitis fibrosa cystica generalisata [von Recklinghausen's disease of bone]
    ICD-10-CM Diagnosis Code E21.3

    Hyperparathyroidism, unspecified

      2016 2017 2018 2019 Billable/Specific Code
  • hypoparathyroidism (
    ICD-10-CM Diagnosis Code E20
    • E20 Hypoparathyroidism
      • E20.0 Idiopathic hypoparathyroidism
      • E20.1 Pseudohypoparathyroidism
      • E20.8 Other hypoparathyroidism
      • E20.9 Hypoparathyroidism, unspecified
  • glycogen storage disease (
    ICD-10-CM Diagnosis Code E74.0

    Glycogen storage disease

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
  • lipid storage disorders (
    ICD-10-CM Diagnosis Code E75
    • E75 Disorders of sphingolipid metabolism and othe...
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 G73.7. 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:
  • rheumatoid arthritis (
    ICD-10-CM Diagnosis Code M05.32

    Rheumatoid heart disease with rheumatoid arthritis of elbow

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
  • sarcoidosis (
    ICD-10-CM Diagnosis Code D86.87

    Sarcoid myositis

      2016 2017 2018 2019 Billable/Specific Code
  • scleroderma (
    ICD-10-CM Diagnosis Code M34.82

    Systemic sclerosis with myopathy

      2016 2017 2018 2019 Billable/Specific Code
  • sicca syndrome [Sjögren] (
    ICD-10-CM Diagnosis Code M35.03

    Sicca syndrome with myopathy

      2016 2017 2018 2019 Billable/Specific Code
  • systemic lupus erythematosus (
    ICD-10-CM Diagnosis Code M32.19

    Other organ or system involvement in systemic lupus erythematosus

      2016 2017 2018 2019 Billable/Specific Code
The following code(s) above G73.7 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 G73.7:
  • G00-G99
    2019 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • 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 nervous system
Approximate Synonyms ICD-10-CM G73.7 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

Convert G73.7 to ICD-9-CM

Code History
Code annotations containing back-references to G73.7:
ICD-10-CM Codes Adjacent To G73.7
G72.4 Inflammatory and immune myopathies, not elsewhere classified
G72.41 Inclusion body myositis [IBM]
G72.49 Other inflammatory and immune myopathies, not elsewhere classified
G72.8 Other specified myopathies
G72.81 Critical illness myopathy
G72.89 Other specified myopathies
G72.9 Myopathy, unspecified
G73 Disorders of myoneural junction and muscle in diseases classified elsewhere
G73.1 Lambert-Eaton syndrome in neoplastic disease
G73.3 Myasthenic syndromes in other diseases classified elsewhere
G73.7 Myopathy in diseases classified elsewhere
G80 Cerebral palsy
G80.0 Spastic quadriplegic cerebral palsy
G80.1 Spastic diplegic cerebral palsy
G80.2 Spastic hemiplegic cerebral palsy
G80.3 Athetoid cerebral palsy
G80.4 Ataxic cerebral palsy
G80.8 Other cerebral palsy
G80.9 Cerebral palsy, unspecified
G81 Hemiplegia and hemiparesis
G81.0 Flaccid hemiplegia

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