R33
Non-billableRetention of urine
R33 is the ICD-10-CM code for Retention of urine. It is a non-billable category code — use a more specific child code such as R33.0 for billing.
- Status
- Header (non-billable)
- Chapter
- R00-R99
- Subcodes
- 3
- Edition
- FY2026
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
What this means — in plain language
MedlinePlus · NIHYour kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate. It swells into a round shape when it is full and gets smaller when empty. If your urinary system is healthy, your bladder can hold up to…
Read more about Urine and Urination at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •psychogenic retention of urine (F45.8)
Frequently asked questions
- What is ICD-10 code R33?
- R33 is the ICD-10-CM code for "Retention of urine". It falls under R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.
- Is R33 a billable code?
- No — R33 is a non-billable header code. Use a more specific child code (such as R33.0) for billing.
- What is excluded from R33?
- Excludes1 (not coded here): psychogenic retention of urine (F45.8).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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