2026 ICD-10-CM Diagnosis Code B06.09Other neurological complications of rubella

ICD-10-CM Codes›A00–B99›B00-B09›B06

ICD-10-CM B06.09
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B06.09 is a billable ICD-10-CM diagnosis code for other neurological complications of rubella. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as rubella infection of central nervous system. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Viral infection.

Code Identity

ICD-10-CM Code
B06.09
Billable Status
Yes — Valid for Submission
Code Describes
Other neurological complications of rubella
Short Description
Other neurological complications of rubella
Same as the full description in the CMS dataset.
Parent Code
B06.0
Rubella with neurological complications

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB00-B09Viral infections characterized by skin and mucous membrane lesions
CategoryB06Rubella [German measles]
This CodeB06.09Other neurological complications of rubella

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Rubella infection of central nervous system

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Rubella(German measles)
      • complication NEC

Clinical ClassificationClinical

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

CCSR INF008
Viral infection
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Rubella

Rubella is an infection caused by a virus. It is usually mild with fever and a rash. About half of the people who get rubella do not have symptoms. If you do get them, symptoms may include:

Read the full article at MedlinePlus

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

Convert B06.09 to ICD-9-CMHistory

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

ICD-9-CM
056.09 Rubella nerve compl 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About B06.09Overview

Is B06.09 (Rubella with neurological complications) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other neurological complications of rubella on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of B06.09?

Under the General Equivalence Mappings, other neurological complications of rubella converts to ICD-9-CM 056.09 (rubella nerve compl NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.