Is R44.2 a billable ICD-10-CM code?

Yes. R44.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R44.2 sit in the tabular list?

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).

What cannot be coded together with R44.2?

R44.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R44.2 (R44) and apply to it just the same.

R44.2

R44.2 — Other hallucinations

Billable / specific codeICD-10-CM

R44.2 is a billable, specific ICD-10-CM code for other hallucinations. It is valid for submission on a claim.

Excludes1 inherited from the categories above R44.2

These are not written on R44.2, but they bind it: a note on a category applies to every code beneath it. Billing R44.2 with anything listed here is a denial.

Written on R44 — Other symptoms and signs involving general sensations and perceptions

alcoholic hallucinations (F10.151, F10.251, F10.951)
hallucinations in drug psychosis (F11-F19 with fifth to sixth characters 51)
hallucinations in mood disorders with psychotic symptoms (F30.2, F31.5, F32.3, F33.3)
hallucinations in schizophrenia, schizotypal and delusional disorders (F20-F29)

Excludes2 inherited from the categories above R44.2

Also inherited, and the opposite of Excludes1: these conditions are not part of R44.2, but a patient can have both, so you may code both.

Written on R44 — Other symptoms and signs involving general sensations and perceptions

disturbances of skin sensation (R20.-)

Risk adjustment

R44.2 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

R44.2 is named in 11 Medicare coverage policies — 11 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A54799Billing and Coding: Urine Drug Testing
A55001Billing and Coding: Urine Drug Testing
A56034Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathy
A56612Billing and Coding: CT of the Head

How R44.2 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 R44.2.

Hallucination›gustatory
Hallucination›olfactory
Hallucination›specified NEC
Hallucination›tactile

Code history

R44.2 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share R44. If R44.2 is not quite right, the correct code is usually one of these.

Questions about R44.2

Is R44.2 a billable ICD-10-CM code?: Yes. R44.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R44.2 sit in the tabular list?: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).
What cannot be coded together with R44.2?: R44.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above R44.2 (R44) and apply to it just the same.