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R80ICD-10-CM

Chapter 18 · R00–R99 · Symptoms, Signs & Abnormal Findings

Proteinuria

R80 is the ICD10 code used for documenting Proteinuria based on abnormal urine test results.

What R80 covers · when clinicians use it

ICD-10 code R80 identifies Proteinuria in the U.S. ICD-10-CM clinical and billing record set. It sits within the Symptoms, Signs & Abnormal Findings chapter (R00–R99), the section that groups related diagnoses so providers, payers, and public-health agencies report them consistently. Clinicians and medical coders apply R80 when an encounter's findings match the Proteinuria description, attaching it to the patient record so downstream insurance claims, payer audits, quality reporting, and epidemiological surveillance all reference the same standardized diagnosis. The ICD-10-CM is maintained by the Centers for Medicare & Medicaid Services and the CDC's National Center for Health Statistics, with an updated official code set released each U.S. fiscal year — always verify R80 against the current CMS/CDC release and your payer's documentation guidance before final use. This page summarizes documentation context for R80 and is a coding reference, not clinical, diagnostic, or billing advice.

R80 refers to Proteinuria, highlighting unusual findings in urine samples such as elevated protein levels, sugar presence, or other chemical and microscopic abnormalities.

Symptoms

  • Protein detected in urine – R80
  • Glucose detected in urine – R81
  • Other unusual findings like ketones, blood, or crystals – R82

Diagnosis

Urinalysis, dipstick tests, microscopic urine analysis, and sometimes 24-hour urine collection help detect and confirm the presence of proteinuria, glycosuria, or other urine abnormalities requiring further clinical investigation.

ICD10 Code Usage

ICD10 code R80 is used to classify abnormal urine findings during initial evaluations, clinical screenings, or in patients undergoing follow-up for chronic conditions such as diabetes, kidney disease, or metabolic disorders.

Related Codes

FAQs

Q1: What is ICD10 code R80?
A: It documents Proteinuria identified through urine tests, signaling possible underlying systemic disorders.

Q2: What does proteinuria usually indicate?
A: It often suggests kidney disease, hypertension, or diabetic nephropathy.

Q3: Is glycosuria always linked to diabetes?
A: While often associated with diabetes, it can sometimes occur in pregnancy or renal glycosuria without diabetes.

Q4: How are other abnormal urine findings managed?
A: Further lab work, imaging, and specialist consultation (like nephrology) may be warranted based on the findings.

Q5: Why document abnormal urine findings separately?
A: Early detection and categorization of urine abnormalities guide targeted diagnostic testing and timely treatment interventions.

Conclusion

ICD10 code R80 plays a critical role in documenting Proteinuria, enabling healthcare providers to track, monitor, and respond to underlying diseases revealed through urine abnormalities.

Source: ICD-10-CM (CMS / CDC NCHS official code set)

Last reviewed:

This page is a documentation reference for the ICD-10-CM code set and is not clinical, diagnostic, or billing advice. Always verify codes against the official ICD-10-CM source and your payer's guidelines.

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