R33.9 — Retention of urine, unspecified
R33.9 is a billable, specific ICD-10-CM code for retention of urine, unspecified. It is valid for submission on a claim.
Risk adjustment
R33.9 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
R33.9 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53359Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A55835Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence
- A56802Billing and Coding: Urodynamics
How R33.9 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 R33.9.
- Incomplete›bladder, emptying
- Retention›urine
- Urine›retention or stasis
Related codes at this level
Codes that share R33. If R33.9 is not quite right, the correct code is usually one of these.
Questions about R33.9
- Is R33.9 a billable ICD-10-CM code?
- Yes. R33.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R33.9 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 the genitourinary system (R30-R39).