G71.12 - Myotonia congenita
- Applicable to Myotonia congenita
- The 2025 edition of ICD10-CM G71.12 became effective on October 1, 2024.
- This is the American ICD10-CM version of G71.12 - other international versions of ICD10 G71.12 may differ.
- G71.12 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Inclusion Term
- Acetazolamide responsive myotonia congenita
- Dominant myotonia congenita [Thomsen disease]
- Myotonia levior
- Recessive myotonia congenita [Becker disease]
The following codes above G71.12 contain annotation back-references that may be applicable to G71.12:
Chapter: G00-G99 Diseases of the nervous system
Section: G70-G73 Diseases of myoneural junction and muscle
Category: G71 Primary disorders of muscles
Billable/Specific Code
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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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