All ICD10 Codes

G40.2

Non-Billable
ChapterG00–G99
Ranksubcategory
Official Description

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 6: Diseases of the Nervous System (G00-G99).

Instructional Notes

Includes
  • Attacks with alteration of consciousness, often with automatisms
  • Complex partial seizures developing into secondarily generalized seizures
General instructions are available for the parent sections:
View CH6 NotesView G40 Notes

Clinical Hierarchy

CH6Diseases of the nervous system (G00-G99)
G40-G47Episodic and paroxysmal disorders (G40-G47)
G40Epilepsy and recurrent seizures
G40.2Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures
G40.20Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable
G40.21Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G40.2:

categoryG40
Epilepsy and recurrent seizures
View context instructions
chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to G40.2. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

14 raw paths
Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure)14 unique routes
localization-related (focal) (partial)(7 variants)
symptomatic(7 variants)
with complex partial seizures→G40.2(7 variants)
intractable→G40.2(3 variants)
with status epilepticus→G40.2
without status epilepticus→G40.2
not intractable→G40.2(3 variants)
with status epilepticus→G40.2
without status epilepticus→G40.2
syndromes(7 variants)
localization-related (focal) (partial)(7 variants)
symptomatic(7 variants)
with complex partial seizures→G40.2(7 variants)
intractable→G40.2(3 variants)
with status epilepticus→G40.2
without status epilepticus→G40.2
not intractable→G40.2(3 variants)
with status epilepticus→G40.2
without status epilepticus→G40.2

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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