ICD-10 R33.9
Billable / SpecificRetention of urine, unspecified
About ICD-10-CM R33.9
ICD-10-CM code R33.9 represents Retention of urine, unspecified. This is a billable/specific code in the Symptoms, Signs, and Abnormal Findings chapter (block R33). The 2026 edition of ICD-10-CM R33.9 became effective on October 1, 2025.
Medicare LCD Coverage for R33.9
Local Coverage Determinations (LCDs) from CMS MACs that list R33.9 as a covered diagnosis.
Showing top 10 of 125 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing R33.9.
1 Cigna
5 Medicare
1 Aetna
CPT Codes Commonly Billed with R33.9
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 52000 Cystoscopy diagnostic — bladder neck obstruction, cystitis, hematuria, hydronephrosis, bladder cancer, BPH, urinary retention, urethral stricture, poor stream, bladder calculus Urology
- 52601 TURP — BPH with LUTS, BPH, urinary retention, poor stream, hydronephrosis, bladder neck obstruction, hematuria Urology
- 55700 Prostate biopsy — elevated PSA, prostate disorder, prostate cancer, family hx prostate cancer, urinary retention, prostate screening Urology
- 76857 Pelvic ultrasound non-OB — BPH, urinary retention, hematuria, poor stream, hydronephrosis, bladder cancer, pelvic pain, cystitis Urology
- C1820 CMS LCD: Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence CMS LCD
- L8680 CMS LCD: Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence CMS LCD
- A4290 CMS LCD: Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence CMS LCD
- C1883 CMS LCD: Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence CMS LCD
- C1767 CMS LCD: Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence CMS LCD
- C1778 CMS LCD: Billing and Coding: Sacral Nerve Stimulation for Urinary and Fecal Incontinence CMS LCD
Convert R33.9 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| R33.9 | 78820 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To R33.9
Other codes in section R30-R39 (Symptoms and signs involving the genitourinary system).
ICD-10 R33.9, Billing FAQ
Is ICD-10 code R33.9 billable? +
Yes, R33.9 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What CPT codes are commonly billed with R33.9? +
Procedures frequently paired with R33.9 include: 52000, 52601, 55700, 76857, C1820.
What ICD-9 codes does R33.9 map to? +
Per CMS GEMs, R33.9 maps to ICD-9 codes: 78820. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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