G40.824

Epileptic spasms, intractable, without status epilepticus

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC V28

HCC201

Seizure Disorders and Convulsions

CMS-HCC ESRD V24

HCC79

Seizure Disorders and Convulsions

RxHCC V08

RXHCC163

Intractable Epilepsy

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from G40.82Epileptic spasms
Synonyms

Infantile spasms Salaam attacks West's syndrome

Inherited from G40.8Other epilepsy and recurrent seizures
Synonyms

Epilepsies and epileptic syndromes undetermined as to whether they are focal or generalized Landau-Kleffner syndrome

Inherited from G40Epilepsy and recurrent seizures
Excludes 1

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

Excludes 2

hippocampal sclerosis (G93.81) mesial temporal sclerosis (G93.81) temporal sclerosis (G93.81) Todd's paralysis (G83.84)

Note

the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled

Inherited from chapter 6Diseases of the nervous system
Excludes 2

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)

Official Guidelines for G40.824

FY 2026 ›