Is F51.0 a billable ICD-10-CM code?

No. F51.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does F51.0 sit in the tabular list?

Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59).

F51.0

F51.0 — Insomnia not due to a substance or known physiological condition

Non-billable headerICD-10-CM

F51.0 is a non-billable header ICD-10-CM code for insomnia not due to a substance or known physiological condition. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

alcohol related insomnia (F10.182, F10.282, F10.982)
drug-related insomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
insomnia NOS (G47.0-)
insomnia due to known physiological condition (G47.0-)
organic insomnia (G47.0-)
sleep deprivation (Z72.820)

Other codes that can never be billed with F51.0

These codes carry an Excludes1 note pointing at F51.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading F51.0 alone.

Z72.821Inadequate sleep hygiene

Risk adjustment

F51.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead F51.0

6 child codes. Green means billable.

Related codes at this level

Codes that share F51. If F51.0 is not quite right, the correct code is usually one of these.

Questions about F51.0

Is F51.0 a billable ICD-10-CM code?: No. F51.0 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does F51.0 sit in the tabular list?: Mental, Behavioral and Neurodevelopmental disorders (F01-F99), in the block Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59).