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ICD-10-CM 2027 diagnosis code

R31.2Other microscopic hematuria

Not billable — use a more specific code

R31.2 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R31.2

R31.2 is the ICD-10-CM diagnosis code for other microscopic hematuria. It belongs to category R31 (hematuria), block R30-R39 (symptoms and signs involving the genitourinary system) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within R31, choose R31.2 (Other microscopic hematuria) only when documentation doesn't support a more specific option: Gross hematuria (R31.0), benign essential microscopic hematuria (R31.1) and unspecified (R31.9).

To report this condition, pick the subcode that matches the documentation: R31.21 (hematuria) and R31.29 (hematuria).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).

Specific codes under R31.2

Notes that apply from higher levels

Instructions written at a parent level also apply to R31.2.

› From R31 Hematuria
Excludes1
  • hematuria included with underlying conditions, such as:
  • acute cystitis with hematuria (N30.01)
  • recurrent and persistent hematuria in glomerular diseases (N02.-)

Broader instructions also apply from Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2017 (effective 10/1/2016): Expanded — no longer billable

Common questions about R31.2

Is R31.2 billable?

No. R31.2 is a header code. Report one of its more specific subcodes instead.