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    v1.0.28
    OpenPayerBilling CodesSymptoms and signs involving the genitourinary systemICD-10-CM r33-retention-of-urine
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    ICD-10-CM Code For Retention Of Urine: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group R33 includes diagnoses for urinary retention, covering acute retention, chronic retention, and unspecified retention of urine affecting bladder emptying. These ICD-10-CM diagnosis codes are used to document clinical scenarios involving impaired bladder emptying, urinary obstruction, or neurologic dysfunction leading to retention, capturing disease acuity and complications. Accurate coding within the ICD-10-CM R33 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM R33: Retention Of Urine Overview

    The ICD-10-CM R33 group represents urinary retention diagnoses, conditions where the bladder is unable to empty completely or at all. These codes target the genitourinary system and capture acute or chronic retention and unspecified retention states. Accurate coding matters for complete clinical documentation and supports appropriate claim processing and reimbursement.

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    When to Use

    Use codes from this group when clinical documentation indicates that a patient has acute urinary retention, chronic urinary retention, or unspecified urinary retention documented by examination, history, or diagnostic testing. Select the code that reflects acuity and any documented underlying cause or complication when available.

    ICD-10-CM Codes

    3 rows

    ICD-10-CM CodeDescription
    R33.0Drug induced retention of urine
    R33.8Other retention of urine
    R33.9Retention of urine, unspecified

    DRG Codes

    4 rows

    DRG CodeDescription
    695Kidney and Urinary Tract Signs and Symptoms with MCC
    696Kidney and Urinary Tract Signs and Symptoms without MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An elderly male with a history of benign prostatic hyperplasia presents to the emergency department with lower abdominal pain, a distended bladder on examination, and inability to void for the past 12 hours after urinary catheter removal. Bladder ultrasound confirms significant post-void residual and the patient requires catheterization to relieve obstruction; a retention diagnosis is assigned to document acute urinary retention. Typical codes: R33.0
    • A middle-aged woman with chronic neurogenic bladder from multiple sclerosis is seen in clinic for recurrent incomplete emptying, frequent urinary tract infections, and persistent high post-void residuals despite intermittent self-catheterization. The encounter documents ongoing urinary retention as a chronic condition contributing to morbidity and care needs. Typical codes: R33.8, R33.9
    • A hospitalized postoperative patient after pelvic surgery develops sudden inability to void and a markedly distended bladder on bladder scan on postoperative day one, requiring temporary Foley catheter placement; the retention is noted as an immediate postoperative complication affecting recovery and discharge planning. Typical codes: R33.0, R33.8

    Related Codes

    R30-PAIN-ASSOCIATED-WITH-MICTURITION

    ICD-10-CM Code For Pain Associated With Micturition: Group Overview

    R31-HEMATURIA

    ICD-10-CM Code For Hematuria: Group Overview

    R32-UNSPECIFIED-URINARY-INCONTINENCE

    ICD-10-CM Code For Unspecified Urinary Incontinence: Group Overview

    R34-ANURIA-AND-OLIGURIA

    ICD-10-CM Code For Anuria And Oliguria: Group Overview

    R35-POLYURIA

    ICD-10-CM Code For Polyuria: Group Overview

    R36-URETHRAL-DISCHARGE

    ICD-10-CM Code For Urethral Discharge: Group Overview

    R37-SEXUAL-DYSFUNCTION-UNSPECIFIED

    ICD-10-CM Code For Sexual Dysfunction Unspecified: Group Overview

    R39-OTHER-AND-UNSPECIFIED-GENITOURINARY-SYMPTOMS

    ICD-10-CM Code For Other And Unspecified Symptoms And Signs Involving The Genitourinary System: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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