Is R41.82 a billable ICD-10-CM code?

Yes. R41.82 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R41.82 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 R41.82?

R41.82 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

R41.82

R41.82 — Altered mental status, unspecified

Billable / specific codeICD-10-CM

R41.82 is a billable, specific ICD-10-CM code for altered mental status, unspecified. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

altered level of consciousness (R40.-)
altered mental status due to known condition - code to condition
delirium NOS (R41.0)

Inclusion terms

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

Change in mental status NOS

Other codes that can never be billed with R41.82

These codes carry an Excludes1 note pointing at R41.82. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R41.82 alone.

F06.7Mild neurocognitive disorder due to known physiological condition
G31.84Mild cognitive impairment of uncertain or unknown etiology

Risk adjustment

R41.82 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

R41.82 is named in 26 Medicare coverage policies — 25 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.

A57497Billing and Coding: Chest X-Ray Policynot covered
A54799Billing and Coding: Urine Drug Testing
A56416Billing and Coding: Assays for Vitamins and Metabolic Function
A56612Billing and Coding: CT of the Head

How R41.82 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 R41.82.

Alteration, Altered›mental status
Change›mental status
Symptoms NEC›involving›awareness›altered mental status
Symptoms NEC›involving›cognitive functions›altered mental status

Related codes at this level

Codes that share R41.8. If R41.82 is not quite right, the correct code is usually one of these.

Questions about R41.82

Is R41.82 a billable ICD-10-CM code?: Yes. R41.82 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R41.82 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 R41.82?: R41.82 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.