ICD-10-CM R33 is the diagnosis code for Retention of urine. This code falls under the section "Symptoms and signs involving the genitourinary system" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as R33. They are mutually exclusive:
Understanding where R33 sits in the ICD-10-CM classification helps ensure proper coding:
No, R33 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
R33 is the ICD-10-CM diagnosis code for "Retention of urine". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
R33 is located in Section R30-R39 — "Symptoms and signs involving the genitourinary system" within Chapter 18 of the ICD-10-CM Tabular List.
R33 has 3 sub-code(s) that provide more specific detail: R33.0, R33.8, R33.9.
Use R33 when the patients documented diagnosis matches "Retention of urine" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Retention of urine is R33.
No, R33 is non-billable. Use a more specific sub-code for primary diagnosis billing.
R33 is in Chapter 18 of the ICD-10-CM Tabular List.
Type 1 Excludes for R33 include: psychogenic retention of urine (F45.8).
Yes, R33 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.