2022

  1. ICD-10-CM Codes
    2. ›
  2. G00-G99 Diseases of the nervous system
    3. ›
  3. G70-G73 Diseases of myoneural junction and muscle
    4. ›
  4. G71- Primary disorders of muscles
    5. ›
  5. 2022 ICD-10-CM Diagnosis Code G71.13

2022 ICD-10-CM Diagnosis Code G71.13

Myotonic chondrodystrophy

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • G71.13 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM G71.13 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of G71.13 - other international versions of ICD-10 G71.13 may differ.
Applicable To
  • Chondrodystrophic myotonia
  • Congenital myotonic chondrodystrophy
  • Schwartz-Jampel disease
The following code(s) above G71.13 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 G71.13:
  • G00-G99
    2022 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

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • arthrogryposis multiplex congenita (Q74.3)
    • metabolic disorders (E70-E88)
    • myositis (M60.-)
    Primary disorders of muscles
Clinical Information
  • A syndrome of short stature; generalized myotonia with contractures of major joints, microstomia, and muscle rigidity; ocular anomalies, mainly blepharophimosis; and characteristic facies marked by pinched or frozen smile puckered lips. Some degree of mental retardation occurs in about 25% of patients. The affected children usually appear normal at birth and the symptoms become recognizable at 1 to 3 years of age. Malignant hyperthermia is a potentially lethal hazard during anesthesia.
ICD-10-CM G71.13 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 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 G71.13 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
  • 2022 (effective 10/1/2021): No change
Code annotations containing back-references to G71.13:
  • Type 2 Excludes: Q78
    , Q77
    , Q68
    ICD-10-CM Diagnosis Code Q78

    Other osteochondrodysplasias

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • congenital myotonic chondrodystrophy (G71.13)
    ICD-10-CM Diagnosis Code Q77

    Osteochondrodysplasia with defects of growth of tubular bones and spine

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    • congenital myotonic chondrodystrophy (G71.13)
    ICD-10-CM Diagnosis Code Q68

    Other congenital musculoskeletal deformities

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • reduction defects of limb(s) (Q71-Q73)
    Type 2 Excludes
    • congenital myotonic chondrodystrophy (G71.13)

Diagnosis Index entries containing back-references to G71.13:
  • Chondrodystrophy, chondrodystrophia (familial) (fetalis) (hypoplastic) Q78.9
    ICD-10-CM Diagnosis Code Q78.9

    Osteochondrodysplasia, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code POA Exempt
    Applicable To
    • Chondrodystrophy NOS
    • Osteodystrophy NOS
    • myotonic G71.13 (congenital)
  • Disease, diseased - see also Syndrome
    • Schwartz-Jampel G71.13
  • Myotonia (acquisita) (intermittens) M62.89
    ICD-10-CM Diagnosis Code M62.89

    Other specified disorders of muscle

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    Applicable To
    • Muscle (sheath) hernia
    • chondrodystrophic G71.13
  • Schwartz G71.13 (-Jampel)
  • Syndrome - see also Disease
    • Schwartz G71.13 (-Jampel)

ICD-10-CM Codes Adjacent To G71.13
G70.9 Myoneural disorder, unspecified
G71 Primary disorders of muscles
G71.0 Muscular dystrophy
G71.00 …… unspecified
G71.01 Duchenne or Becker muscular dystrophy
G71.02 Facioscapulohumeral muscular dystrophy
G71.09 Other specified muscular dystrophies
G71.1 Myotonic disorders
G71.11 Myotonic muscular dystrophy
G71.12 Myotonia congenita
G71.13 Myotonic chondrodystrophy
G71.14 Drug induced myotonia
G71.19 Other specified myotonic disorders
G71.2 Congenital myopathies
G71.20 Congenital myopathy, unspecified
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

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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