R31Header code — not billable

Hematuria

Chapter
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Category
R31
Effective date
October 1, 2026

Related codes in category R31

R31.0Gross hematuriaYesR31.1Benign essential microscopic hematuriaYesR31.2Other microscopic hematuriaR31.21Asymptomatic microscopic hematuriaYesR31.29Other microscopic hematuriaYesR31.9Hematuria, unspecifiedYes

Frequently asked questions

What is ICD-10 code R31?

R31 is an ICD-10-CM diagnosis code for Hematuria.

Is R31 a billable code?

No. R31 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is R31 in?

R31 falls under Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

When did R31 become effective?

R31 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to R31?

R31 belongs to category R31, which includes 6 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.