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ICD-10-CM 2027 diagnosis code

B05.3Measles complicated by otitis media

✓ Billable / specific

B05.3 is a valid, billable ICD-10-CM code for measles complicated by otitis media. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 B05.3

B05.3 is the ICD-10-CM diagnosis code for measles complicated by otitis media. It belongs to category B05 (measles), block B00-B09 (viral infections characterized by skin and mucous membrane lesions) and chapter 1 (certain infectious and parasitic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within B05 (measles), B05.3 is specifically for measles complicated by otitis media. Related codes cover complicated by encephalitis (B05.0), complicated by meningitis (B05.1), complicated by pneumonia (B05.2), with intestinal complications (B05.4), with other complications (B05.8) and without complication (B05.9).

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 152 (Otitis Media and URI with MCC, relative weight 1.1151), DRG 153 (Otitis Media and URI without MCC, relative weight 0.7421), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 055.2 (Postmeasles otitis media).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Postmeasles otitis media

Notes that apply from higher levels

Instructions written at a parent level also apply to B05.3.

› From B05 Measles
Includes
  • morbilli
Excludes1
  • subacute sclerosing panencephalitis (A81.1)

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to B05.3.

Codes whose notes reference B05.3

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.

MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

ICD-9-CM equivalent

Converter →
  • 055.2Postmeasles otitis mediaexact

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 B05.3

Is B05.3 billable?

Yes. B05.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can B05.3 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict B05.3 as a principal diagnosis.

Is B05.3 a CC or MCC?

No. B05.3 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does B05.3 group to?

B05.3 is used in the MS-DRG v44.0 logic for MS-DRG 152 (Otitis Media and URI with MCC), MS-DRG 153 (Otitis Media and URI without MCC), MS-DRG 791 (Prematurity with Major Problems) and MS-DRG 793 (Full Term Neonate with Major Problems). 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 B05.3?

The CMS General Equivalence Mappings map B05.3 to ICD-9-CM 055.2.