Self-limited neonatal epilepsy

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Self-limited neonatal epilepsy

ORPHA:1949Disease

Also called BFNS · Benign familial neonatal convulsions · Benign familial neonatal epilepsy · Benign familial neonatal seizures · SeLNE

What it is

A rare genetic epilepsy syndrome characterized by seizures onset typically in the first week of life, in otherwise healthy newborns, and usually resolving within the first year of life.

Key facts

Age of onset
Neonatal
Inheritance
Autosomal dominant
Classified as
Disease

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

Genes

KCNQ2Disease-causing germline mutation(s)
KCNQ3Disease-causing germline mutation(s)

ICD-10 codes

G40.3filed under a broader ICD-10 category — shared with 22 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Benefit programs to look at

Programs whose eligibility touches the same ICD-10 categories. Eligibility is decided by the administering agency, never by this page.

Cross-references

GARD 1519MEDDRA 10067866MONDO 0016027MONDO 16027OMIM 121200OMIM 121201OMIM 269720OMIM 608217UMLS C0220669

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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