ICD10BillableValid for clinical use

ICD-10 Code R31.1: Benign essential microscopic hematuria

R31.1 is a billable ICD-10 diagnosis code used to classify Benign essential microscopic hematuria in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

When is it used?

  • May be used when a clinician documents benign essential microscopic hematuria in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
block
R30-R39Symptoms and signs involving the genitourinary system
category
R31Hematuria
currentR31

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

General PhysicianHematologist

Coverage-related procedures and services

CPT 88120high
CYTOPATHOLOGY, IN SITU HYBRIDIZATION (EG, FISH), URINARY TRACT SPECIMEN WITH MORPHOMETRIC ANALYSIS, 3-5 MOLECULAR PROBES, EACH SPECIMEN; MANUAL
Source: CMS coverage guidance
CPT 88121high
CYTOPATHOLOGY, IN SITU HYBRIDIZATION (EG, FISH), URINARY TRACT SPECIMEN WITH MORPHOMETRIC ANALYSIS, 3-5 MOLECULAR PROBES, EACH SPECIMEN; USING COMPUTER-ASSISTED TECHNOLOGY
Source: CMS coverage guidance
CPT 86316high
IMMUNOASSAY FOR TUMOR ANTIGEN, OTHER ANTIGEN, QUANTITATIVE (EG, CA 50, 72-4, 549), EACH
Source: CMS coverage guidance
CPT 86294high
IMMUNOASSAY FOR TUMOR ANTIGEN, QUALITATIVE OR SEMIQUANTITATIVE (EG, BLADDER TUMOR ANTIGEN)
Source: CMS coverage guidance
CPT 86386high
NUCLEAR MATRIX PROTEIN 22 (NMP22), QUALITATIVE
Source: CMS coverage guidance
CPT 36252high
SELECTIVE CATHETER PLACEMENT (FIRST-ORDER), MAIN RENAL ARTERY AND ANY ACCESSORY RENAL ARTERY(S) FOR RENAL ANGIOGRAPHY, INCLUDING ARTERIAL PUNCTURE AND CATHETER PLACEMENT(S), FLUOROSCOPY, CONTRAST INJECTION(S), IMAGE POSTPROCESSING, PERMANENT RECORDING OF IMAGES, AND RADIOLOGICAL SUPERVISION AND INTERPRETATION, INCLUDING PRESSURE GRADIENT MEASUREMENTS WHEN PERFORMED, AND FLUSH AORTOGRAM WHEN PERFORMED; BILATERAL
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Benign essential microscopic hematuria

Frequently asked questions

Code details

CodeR31.1
SystemICD10
Display nameBenign essential microscopic hematuria
ChapterSymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
BlockSymptoms and signs involving the genitourinary system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
HematuriaHematuria

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code R31.1 for Benign essential microscopic hematuria | HealthAssure