2026 ICD-10-CM Diagnosis Code B95.3Streptococcus pneumoniae as the cause of diseases classified elsewhere

ICD-10-CM Codes›A00–B99›B95-B97›B95

ICD-10-CM B95.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B95.3 is a billable ICD-10-CM diagnosis code for Streptococcus pneumoniae as the cause of diseases classified elsewhere. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 867 through 869. The code is not accepted as a principal diagnosis by the Medicare Code Editor. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bacterial infections.

Code Identity

ICD-10-CM Code
B95.3
Billable Status
Yes — Valid for Submission
Code Describes
Streptococcus pneumoniae as the cause of diseases classified elsewhere
Short Description
Streptococcus pneumoniae causing diseases classd elswhr
Parent Code
B95
Streptococcus, Staphylococcus, and Enterococcus as the cause of diseases classified elsewhere

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB95-B97Bacterial and viral infectious agents
CategoryB95Streptococcus, Staphylococcus, and Enterococcus as the cause of diseases classified elsewhere
This CodeB95.3Streptococcus pneumoniae as the cause of diseases classified elsewhere

Code EditsBilling

Medicare Code Editor checks that affect claim validity for B95.3.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute bacterial pericarditis
  • Acute bacterial pharyngitis
  • Acute bacterial tonsillitis
  • Acute pneumococcal laryngitis
  • Acute pneumococcal pericarditis
  • Acute pneumococcal pharyngitis
  • Acute pneumococcal tonsillitis
  • Acute streptococcal pericarditis
  • Acute streptococcal pharyngitis
  • Acute tonsillitis caused by Streptococcus
  • Arthritis of ankle caused by Streptococcus pneumoniae
  • Arthritis of left knee caused by bacteria
  • Arthritis of left knee caused by Streptococcus pneumoniae
  • Arthritis of right knee caused by bacteria
  • Arthritis of right knee caused by Streptococcus pneumoniae
  • Bacterial pleurisy
  • Bacterial pleurisy with effusion
  • Bacterial sinusitis
  • Otitis media caused by Streptococcus pneumoniae
  • Pleurisy with effusion
  • Pneumococcal laryngitis
  • Pneumococcal peritonitis
  • Pneumococcal pharyngitis
  • Pneumococcal pleurisy
  • Pneumococcal pleurisy with effusion
  • Pneumococcal tonsillitis
  • Septic myocarditis - pneumococcal
  • Septic myocarditis - streptococcal
  • Sinusitis caused by Streptococcus pneumoniae
  • Streptococcal arthritis of knee
  • Streptococcal arthritis of left knee
  • Streptococcal arthritis of right knee
  • Streptococcal laryngitis
  • Streptococcal pleurisy
  • Streptococcal pleurisy with effusion
  • Streptococcal sore throat
  • Streptococcal tonsillitis

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.

    • Infection, infected, infective(opportunistic)
      • bacterial NOS
        • as cause of disease classified elsewhere
          • Streptococcus
            • pneumoniae
    • Infection, infected, infective(opportunistic)
      • pneumococcus, pneumococcal NEC
        • as cause of disease classified elsewhere
    • Streptococcus, streptococcal
      • pneumoniae, as cause of disease classified elsewhere

Clinical ClassificationClinical

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

CCSR INF003
Bacterial infections
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Pneumococcal Infections

Pneumococci are a type of streptococcus bacteria. The bacteria spread through contact with people who are ill or by healthy people who carry the bacteria in the back of their nose. Pneumococcal infections can be mild or severe. The most common types of infections are:

Read the full article at MedlinePlus

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

Convert B95.3 to ICD-9-CMHistory

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

ICD-9-CM
041.09 Other streptococcus
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 B95.3Overview

Is B95.3 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report Streptococcus pneumoniae as the cause of diseases classified elsewhere on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does B95.3 group to?

On inpatient claims, Streptococcus pneumoniae as the cause of diseases classified elsewhere maps to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.

Can B95.3 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because Streptococcus pneumoniae as the cause of diseases classified elsewhere describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

What is the ICD-9 equivalent of B95.3?

Under the General Equivalence Mappings, Streptococcus pneumoniae as the cause of diseases classified elsewhere converts to ICD-9-CM 041.09 (other streptococcus). 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.