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G40.C01

G40.C01: Lafora progressive myoclonus epilepsy, not intractable, with status epilepticus

Billable / specific codeICD-10-CM

G40.C01 is a billable, specific ICD-10-CM code for lafora progressive myoclonus epilepsy, not intractable, with status epilepticus. It is valid for submission on a claim.

Check G40.C01 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above G40.C01

A category’s note binds every code beneath it.

Written on G40: Epilepsy and recurrent seizures

  • conversion disorder with seizures (F44.5)
  • convulsions NOS (R56.9)
  • post traumatic seizures (R56.1)
  • seizure (convulsive) NOS (R56.9)
  • seizure of newborn (P90)

Excludes2 inherited from the categories above G40.C01

Not part of this code, but both may be coded when both are present.

Written on G40: Epilepsy and recurrent seizures

Other codes that can never be billed with G40.C01

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • G25.3Myoclonus
  • R56Convulsions, not elsewhere classified
  • R56.1Post traumatic seizures

Risk adjustment

G40.C01 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 201 Seizure Disorders and Convulsions0.245 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

G40.C01 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56619Billing and Coding: Nerve Conduction Studies and Electromyography

Alphabetic index entries that lead here

  • Epilepsy, epileptic, epilepsia›myoclonus, myoclonic›progressive›Lafora›not intractable›with status epilepticus

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under G40.C0

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.