G47.429

G47.429: Narcolepsy in conditions classified elsewhere without cataplexy

Billable / specific codeICD-10-CM

G47.429 is a billable, specific ICD-10-CM code for narcolepsy in conditions classified elsewhere without cataplexy. It is valid for submission on a claim.

Check G47.429 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above G47.429

Not part of this code, but both may be coded when both are present.

Written on G47: Sleep disorders

nightmares (F51.5)
nonorganic sleep disorders (F51.-)
sleep terrors (F51.4)
sleepwalking (F51.3)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

G47.429 is named in 15 Medicare coverage policies: 11 listing it as supporting medical necessity, and 4 listing it as NOT covered. Which one applies depends on your Medicare contractor.

A56857Billing and Coding: MolDX: HLA-DQB1*06:02 Testing for Narcolepsynot covered
A56881Billing and Coding: MolDX: HLA-DQB1*06:02 Testing for Narcolepsynot covered
A57441Billing and Coding: MolDX: HLA-DQB1*06:02 Testing for Narcolepsynot covered
A57575Billing and Coding: MolDX: HLA-DQB1*06:02 Testing for Narcolepsynot covered

Alphabetic index entries that lead here

Narcolepsy›in conditions classified elsewhere

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under G47.42

G47.421Narcolepsy in conditions classified elsewhere with cataplexy