Is ICD-10-CM code R33 billable?

No, R33 (Retention of urine) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code R33 belong to?

R33 belongs to Chapter 18 of the ICD-10-CM tabular list: R00–R99 (Symptoms, Signs and Abnormal Clinical and Laboratory Findings).

R33Not billable, use a more specific code below

Retention of urine

In Symptoms and signs involving the genitourinary system (R30-R39), chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings

3 billable codes under R33: none are a CC or MCC; none map to an HCC.

Instructional notes

Excludes1: not coded here, use a different code

psychogenic retention of urine (F45.8)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers when to report symptom, sign, and abnormal finding codes (R00-R99), plus specific rules for falls, coma scales, non-infectious SIRS, death NOS, and NIHSS scores.

Use of symptom codes (page 75)
Use of a symptom code with a definitive diagnosis code (page 75)
Combination codes that include symptoms (page 75)
Repeated falls (page 76)
Coma (page 76)
Functional quadriplegia (page 76)
SIRS due to Non-Infectious Process (page 77)
Death NOS (page 77)

Read Section I.C.18 (page 75), 1 more topics

All codes under R33

R33 can't be used on a claim. Pick a billable code below; grey headings group them.

R33 MS-DRGs

As the principal diagnosis, all 3 billable codes under R33 group to MS-DRG 695, 696, 791, or 793 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Urine and Urination

Your 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 16 ounces (2 cups) of urine comfortably for 2 to 5 hours.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.