Is F51.9 a billable ICD-10-CM code?

Yes. F51.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does F51.9 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).

F51.9

F51.9 — Sleep disorder not due to a substance or known physiological condition, unspecified

Billable / specific codeICD-10-CM

F51.9 is a billable, specific ICD-10-CM code for sleep disorder not due to a substance or known physiological condition, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Emotional sleep disorder NOS

Risk adjustment

F51.9 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.

Medicare coverage

F51.9 is named in 4 Medicare coverage policies — 3 listing it as supporting medical necessity, and 1 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
A57052Billing and Coding: Psychiatric Inpatient Hospitalization
A57053Billing and Coding: Psychiatric Partial Hospitalization Programs
A57780Billing and Coding: Psychological and Neuropsychological Tests

How F51.9 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to F51.9.

Drunkenness›sleep
Problem›sleep disorder, child
Sleep›drunkenness
Disorder›psychogenic NOS›sleep
Disorder›sleep›emotional
Disorder›sleep›nonorganic
Disturbance›sleep›nonorganic origin
Sleep›disorder or disturbance›child
Sleep›disorder or disturbance›nonorganic origin
Sleep›disturbance›nonorganic origin

Related codes at this level

Codes that share F51. If F51.9 is not quite right, the correct code is usually one of these.

Questions about F51.9

Is F51.9 a billable ICD-10-CM code?: Yes. F51.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does F51.9 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).