G40.109
BillableLocalization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus
HCC Category Mapping
V28HCC 201 — Seizure Disorders and Convulsions
0.262V24HCC 79 — Seizure Disorders and Convulsions
0.244ESRDHCC 79 — Seizure Disorders and Convulsions
0.000RxHCCHCC 164 — Seizure Disorders, Non-Intractable Epilepsy
0.000What This Code Means
A type of epilepsy caused by a known brain condition with simple partial seizures that responds to medication, without current prolonged seizure activity.
Coding Tips
- •The '10' indicates symptomatic with simple partial seizures; the final '9' indicates no status epilepticus
- •Document the underlying etiology and confirm the seizures are controlled or not currently in status epilepticus
Clinical Significance
This code represents the stable baseline state of symptomatic focal epilepsy with simple partial seizures — the condition is controlled with medication and the patient is not in status epilepticus. Simple partial seizures preserve consciousness, distinguishing them from complex partial seizures. The symptomatic designation indicates an identifiable underlying cause that should also be coded.
Documentation Requirements
- ✓Documentation of focal epilepsy with an identified underlying cause
- ✓Description of simple partial seizure semiology (motor, sensory, autonomic, or psychic symptoms without loss of consciousness)
- ✓Current antiepileptic medication regimen and seizure control status
- ✓Identification of the underlying etiology (stroke, tumor, cortical dysplasia, etc.)
- ✓Seizure frequency and last seizure date if documented
- ✓Confirmation that seizures are NOT intractable and patient is NOT in status epilepticus
Commonly Confused Codes
G40.209 — Symptomatic focal epilepsy with COMPLEX partial seizures; impaired awareness differentiatesG40.009 — IDIOPATHIC focal epilepsy; no identified causeG40.101 — Same type WITH status epilepticus; acute emergencyG40.119 — Same type, intractable; drug-resistant formG40.909 — Epilepsy unspecified; too nonspecific when seizure type and etiology are known
Code Hierarchy
└G40Epilepsy and recurrent seizures└G40.1Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures└G40.10Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable└G40.109Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus
└G40.109Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus