ICD-10-CM Codes
G00-G99 Diseases of the nervous system
G70-G73 Diseases of myoneural junction and muscle
G71- Primary disorders of muscles
2021 ICD-10-CM Diagnosis Code G71.9

2021 ICD-10-CM Diagnosis Code G71.9

Primary disorder of muscle, unspecified

2016

2017

2018

2019

2020

2021

Billable/Specific Code

G71.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2021 edition of ICD-10-CM G71.9 became effective on October 1, 2020.
This is the American ICD-10-CM version of G71.9 - other international versions of ICD-10 G71.9 may differ.

Applicable To

Hereditary myopathy NOS

The following code(s) above G71.9 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 G71.9:

G00-G99
2021 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
G71
ICD-10-CM Diagnosis Code G71
Primary disorders of muscles
Type 2 Excludes
- arthrogryposis multiplex congenita (Q74.3)
- metabolic disorders (E70-E88)
- myositis (M60.-)
Primary disorders of muscles

Approximate Synonyms

Disorder of muscle, primary
Primary myopathy

ICD-10-CM G71.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

091 Other disorders of nervous system with mcc
092 Other disorders of nervous system with cc
093 Other disorders of nervous system without cc/mcc

Convert G71.9 to ICD-9-CM

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

Diagnosis Index entries containing back-references to G71.9:

Disorder (of) - see also Disease
- neuromuscular G70.9
  ICD-10-CM Diagnosis Code G70.9
  Myoneural disorder, unspecified
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  - hereditary NEC G71.9
Myopathy G72.9
ICD-10-CM Diagnosis Code G72.9
Myopathy, unspecified
- hereditary G71.9
- primary G71.9

ICD-10-CM Codes Adjacent To G71.9

G71.19 Other specified myotonic disorders

G71.2 Congenital myopathies

G71.20 Congenital myopathy, unspecifed

G71.21 Nemaline myopathy

G71.22 Centronuclear myopathy

G71.220 X-linked myotubular myopathy

G71.228 Other centronuclear myopathy

G71.29 Other congenital myopathy

G71.3 Mitochondrial myopathy, not elsewhere classified

G71.8 Other primary disorders of muscles

G71.9 Primary disorder of muscle, unspecified

G72 Other and unspecified myopathies

G72.0 Drug-induced myopathy

G72.1 Alcoholic myopathy

G72.2 Myopathy due to other toxic agents

G72.3 Periodic paralysis

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

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

2021 ICD-10-CM Diagnosis Code G71.9

Primary disorder of muscle, unspecified

Diseases of the nervous system

Primary disorders of muscles

Myoneural disorder, unspecified

Myopathy, unspecified