N39.490 — Overflow incontinence
N39.490 is a billable, specific ICD-10-CM code for overflow incontinence. It is valid for submission on a claim.
Risk adjustment
N39.490 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
N39.490 is named in 29 Medicare coverage policies — 28 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.
- A57067Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
- A53359Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
How N39.490 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 N39.490.
- Incontinence›overflow
- Incontinence›urine›overflow
Related codes at this level
Codes that share N39.49. If N39.490 is not quite right, the correct code is usually one of these.
Questions about N39.490
- Is N39.490 a billable ICD-10-CM code?
- Yes. N39.490 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N39.490 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Other diseases of the urinary system (N30-N39).