2027 ICD-10-CM Diagnosis Code B06.81Rubella pneumonia

ICD-10-CM Codes›A00–B99›B00-B09›B06

ICD-10-CM B06.81
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B06.81 is a billable ICD-10-CM diagnosis code for rubella pneumonia. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793, 865 through 866. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 24 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pneumonia (except that caused by tuberculosis) and Viral infection.

Code Identity

ICD-10-CM Code
B06.81
Billable Status
Yes — Valid for Submission
Code Describes
Rubella pneumonia
Short Description
Rubella pneumonia
Same as the full description in the CMS dataset.
Parent Code
B06.8
Rubella with other complications

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB00-B09Viral infections characterized by skin and mucous membrane lesions
CategoryB06Rubella [German measles]
This CodeB06.81Rubella pneumonia

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Rubella pneumonia

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B06.81: its own notes plus those printed at B06 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From B06 Rubella [German measles] applies to 8 codes
  • congenital rubella (P35.0)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name B06.81, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming B06.81: they are not reported together with it, unless the two conditions are unrelated.

  • J17 Pneumonia in diseases classified elsewhere
    rubella pneumonia (B06.81)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR RSP002
Pneumonia (except that caused by tuberculosis)
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF008
Viral infection
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Pneumonia

Pneumonia is an infection in one or both of your lungs. It causes the air sacs of your lungs to fill up with fluid or pus. Pneumonia can range from mild to severe, depending on what caused it, your age, and your overall health.

The full article covers:

  • What is pneumonia?
  • What causes pneumonia?
  • Who is more likely to develop pneumonia?
  • What are the symptoms of pneumonia?
  • What other problems can pneumonia cause?
  • How is pneumonia diagnosed?
  • What are the treatments for pneumonia?
  • Can pneumonia be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert B06.81 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
056.79 Rubella complication NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About B06.81Overview

What is the ICD-10 code for rubella pneumonia?

The ICD-10-CM code for rubella pneumonia is B06.81 (sometimes written as B0681). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B06.81 (Rubella with other complications) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report rubella pneumonia on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B06.81 group to?

When rubella pneumonia is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 866, 865, with relative weights from 0.8691 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B06.81 a CC or MCC?

CMS lists B06.81 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 24 closely related codes in its exclusion list.

Can B06.81 be reported with P35.0?

Not as a rule. The Excludes1 note at B06, which applies to B06.81, lists "congenital rubella (P35.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).