R41.83 — Borderline intellectual functioning
R41.83 is a billable, specific ICD-10-CM code for borderline intellectual functioning. It is valid for submission on a claim.
Risk adjustment
R41.83 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
R41.83 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57130Billing and Coding: Psychiatric Codes
- A59186Billing and Coding: Magnesium
How R41.83 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 R41.83.
- Functioning, intellectual, borderline
- Symptoms NEC›involving›awareness›borderline intellectual functioning
- Symptoms NEC›involving›cognitive functions›borderline intellectual functioning
Related codes at this level
Codes that share R41.8. If R41.83 is not quite right, the correct code is usually one of these.
Questions about R41.83
- Is R41.83 a billable ICD-10-CM code?
- Yes. R41.83 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R41.83 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 R41.83?
- R41.83 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.