R31.21

Billable

ChapterR00–R99

Ranksubcategory

Official Description

Asymptomatic microscopic hematuria

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

Instructional Notes

Includes

General instructions are available for the parent sections:

View CH18 Notes View R31 Notes

Clinical Hierarchy

CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

R30-R39Symptoms and signs involving the genitourinary system (R30-R39)

R31Hematuria

R31.2Other microscopic hematuria

R31.21Asymptomatic microscopic hematuria

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R31.21:

categoryR31

Hematuria

View context instructions

chapterCH18

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to R31.21. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

2 raw paths

AMH (asymptomatic microscopic hematuria)1 unique routes

Direct index entry→R31.21

Hematuria1 unique routes

microscopic NEC (with symptoms)

asymptomatic→R31.21