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ICD-10-CM 2027

ICD-10 code for spasms epilepsy

G40.822

Epileptic spasms, not intractable, without status epilepticus

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure) › spasms”. Page updated September 29, 2026.

About coding spasms epilepsy

The ICD-10-CM code for spasms epilepsy is G40.822 (Epileptic spasms, not intractable, without status epilepticus). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on G40.822.

Within G40.82, choose G40.822 (not intractable, without status epilepticus) only when documentation doesn't support a more specific option: not intractable, with status epilepticus (G40.821), intractable, with status epilepticus (G40.823) and intractable, without status epilepticus (G40.824).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator, relative weight 5.7444), DRG 100 (Seizures with MCC, relative weight 1.9233) and DRG 101 (Seizures without MCC, relative weight 0.8952), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

More specific spasms epilepsy codes (official index)

  • intractable G40.824 — Epileptic spasms, intractable, without status epilepticus
  • with status epilepticus G40.823 — Epileptic spasms, intractable, with status epilepticus
  • without status epilepticus G40.824 — Epileptic spasms, intractable, without status epilepticus
  • not intractable G40.822 — Epileptic spasms, not intractable, without status epilepticus
  • with status epilepticus G40.821 — Epileptic spasms, not intractable, with status epilepticus
  • without status epilepticus G40.822 — Epileptic spasms, not intractable, without status epilepticus

Common questions about spasms epilepsy ICD-10 codes

What is the ICD-10 code for spasms epilepsy?

G40.822 — Epileptic spasms, not intractable, without status epilepticus. More specific codes apply when the documentation supports them: G40.824, G40.823, G40.824, G40.822 and others below.

What is the ICD-10 code for intractable spasms epilepsy?

G40.824 — Epileptic spasms, intractable, without status epilepticus.

Is G40.822 billable?

Yes. G40.822 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can G40.822 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict G40.822 as a principal diagnosis.

Is G40.822 a CC or MCC?

G40.822 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.