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ICD-10-CM 2027 diagnosis code

R35.0Frequency of micturition

✓ Billable / specific

R35.0 is a valid, billable ICD-10-CM code for frequency of micturition. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Pollakiuria, ICD-10 code for Frequency micturition.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R35.0

R35.0 is the ICD-10-CM diagnosis code for frequency of micturition. It belongs to category R35 (polyuria), 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R35 (polyuria), R35.0 is specifically for frequency of micturition. Related codes cover Nocturia (R35.1) and other polyuria (R35.8).

Code first , if applicable, any causal condition, such as: enlarged prostate (N40.1).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 695 (Kidney and Urinary Tract Signs and Symptoms with MCC, relative weight 1.1139) and DRG 696 (Kidney and Urinary Tract Signs and Symptoms without MCC, relative weight 0.6679), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 788.41 (urinary frequency).

Notes that apply from higher levels

Instructions written at a parent level also apply to R35.0.

› From R35 Polyuria
Excludes1
  • psychogenic polyuria (F45.8)
Code first
  • , if applicable, any causal condition, such as:
  • enlarged prostate (N40.1)

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

Alphabetic index entries

6 entries

Terms in the official ICD-10-CM index that lead to R35.0.

Codes whose notes reference R35.0

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

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)
  • No changes since FY2016.

Common questions about R35.0

Is R35.0 billable?

Yes. R35.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R35.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R35.0 as a principal diagnosis.

Is R35.0 a CC or MCC?

No. R35.0 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does R35.0 group to?

R35.0 is used in the MS-DRG v44.0 logic for MS-DRG 695 (Kidney and Urinary Tract Signs and Symptoms with MCC) and MS-DRG 696 (Kidney and Urinary Tract Signs and Symptoms without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for R35.0?

The CMS General Equivalence Mappings map R35.0 to ICD-9-CM 788.41.