G40.309

Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus

Billable / specificHCC V28 201

G40.309 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

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

Not coded here — never report together with this code.

conversion disorder with seizures (F44.5) (from G40)
convulsions NOS (R56.9) (from G40)
post traumatic seizures (R56.1) (from G40)
seizure (convulsive) NOS (R56.9) (from G40)
seizure of newborn (P90) (from G40)

Not included here — may be reported together when both conditions exist.

certain conditions originating in the perinatal period (P04-P96) (from G40)
certain infectious and parasitic diseases (A00-B99) (from G40)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G40)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G40)
endocrine, nutritional and metabolic diseases (E00-E88) (from G40)
injury, poisoning and certain other consequences of external causes (S00-T88) (from G40)
neoplasms (C00-D49) (from G40)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G40)
hippocampal sclerosis (G93.81) (from G40)
mesial temporal sclerosis (G93.81) (from G40)
temporal sclerosis (G93.81) (from G40)
Todd's paralysis (G83.84) (from G40)

An additional code may be needed.

G40.30Generalized idiopathic epilepsy and epileptic syndromes, not intractableHeader

G40.301Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticusBillable