2027 ICD-10-CM Diagnosis Code B95.61Methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere

ICD-10-CM Codes›A00–B99›B95-B97›B95

ICD-10-CM B95.61
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B95.61 is a billable ICD-10-CM diagnosis code for methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) 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
B95.61
Billable Status
Yes — Valid for Submission
Code Describes
Methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere
Short Description
Methicillin suscep staph infct causing dis classd elswhr
Parent Code
B95.6
Staphylococcus aureus 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 CodeB95.61Methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere

Code EditsBilling

Medicare Code Editor checks that affect claim validity for B95.61.

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.

  • Bacterial osteomyelitis
  • Cellulitis caused by Staphylococcus aureus
  • Chancriform pyoderma
  • Early neonatal infection caused by bacterium
  • Early neonatal infection caused by Staphylococcus aureus
  • Ecthyma
  • Ecthyma caused by Staphylococcus aureus
  • Fetal infection caused by bacterium
  • Fetal infection caused by Staphylococcus aureus
  • Impetigo caused by Staphylococcus aureus
  • Infection by methicillin sensitive Staphylococcus aureus
  • Infection caused by Panton-Valentine leukocidin producing Staphylococcus aureus
  • Infection caused by Staphylococcus aureus
  • Infection of lacrimal gland caused by bacterium
  • Neonatal infective mastitis
  • Neonatal inflammation of breast caused by Staphylococcus
  • Neonatal mastitis
  • Neonatal Staphylococcus aureus mastitis
  • Osteomyelitis caused by Staphylococcus aureus
  • Panton-Valentine leukocidin producing Staphylococcus aureus skin infection
  • Perinatal staphylococcal infection
  • Pyoderma ulcerosum tropicalum
  • Right sided infective endocarditis
  • Right-sided Staphylococcus aureus endocarditis
  • Septic shock co-occurrent with acute organ dysfunction caused by methicillin susceptible Staphylococcus aureus
  • Septic shock co-occurrent with acute organ dysfunction due to Staphylococcus
  • Staphylococcal endocarditis
  • Staphylococcal mastitis
  • Staphylococcal meningitis
  • Staphylococcal toxic shock syndrome
  • Staphylococcus aureus dacryoadenitis
  • Staphylococcus aureus meningitis
  • Toxic shock syndrome
  • Toxic shock syndrome caused by methicillin susceptible Staphylococcus aureus

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B95.61: its own notes plus those printed at block B95-B97 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

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Methicillin susceptible Staphylococcus aureus (MSSA) infection as the cause of diseases classified elsewhere
  • Staphylococcus aureus infection NOS as the cause of diseases classified elsewhere

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.-)

Notes

General instructions on how these codes are used.

From Block B95-B97 Bacterial and viral infectious agents applies to 46 codes
  • These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name B95.61, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming B95.61: they are not reported together with it, unless the two conditions are unrelated.

  • A49 Bacterial infection of unspecified site
    bacterial agents as the cause of diseases classified elsewhere (B95-B96) names B95-B96, which includes this code

Use Additional Code 64

These codes say to use an additional code from the note, and B95.61 is one of the codes named.

  • G00.3 Staphylococcal meningitis
    code to further identify organism (B95.61-B95.8)
  • M00.0 Staphylococcal arthritis and polyarthritis
    code (B95.61-B95.8) to identify bacterial agent
  • A48.3 Toxic shock syndrome
    code to identify the organism (B95, B96) names B95, which includes this code
  • J95.851 Ventilator associated pneumonia
    code to identify the organism, if known (B95.-, B96.-, B97.-) names B95.-, which includes this code
  • K95.01 Infection due to gastric band procedure
    bacterial and viral infectious agents (B95.-, B96.-) names B95.-, which includes this code
  • K95.81 Infection due to other bariatric procedure
    bacterial and viral infectious agents (B95.-, B96.-) names B95.-, which includes this code
  • M71.0 Abscess of bursa
    code (B95.-, B96.-) to identify causative organism names B95.-, which includes this code
  • M71.1 Other infective bursitis
    code (B95.-, B96.-) to identify causative organism names B95.-, which includes this code
  • M72.6 Necrotizing fasciitis
    code (B95.-, B96.-) to identify causative organism names B95.-, which includes this code
  • M72.8 Other fibroblastic disorders
    code to (B95.-, B96.-) identify causative organism names B95.-, which includes this code
  • O23 Infections of genitourinary tract in pregnancy
    code to identify organism (B95.-, B96.-) names B95.-, which includes this code
  • E06.0 Acute thyroiditis
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • G06 Intracranial and intraspinal abscess and granuloma
    code (B95-B97) to identify infectious agent. names B95-B97, which includes this code
  • H65 Nonsuppurative otitis media
    infectious agent (B95-B97) names B95-B97, which includes this code
  • I30.1 Infective pericarditis
    code (B95-B97) to identify infectious agent names B95-B97, which includes this code

49 more Use Additional Code notes name this code. Browse all Use Additional Code notes.

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

Patient EducationClinical

Staphylococcal Infections

Staphylococcus (staph) is a group of bacteria. There are more than 30 types. A type called Staphylococcus aureus causes most infections.

The full article covers:

  • What are Staphylococcal (staph) infections?
  • What causes staph infections?
  • Who is more likely to get a staph infection?
  • What are the symptoms of staph infections?
  • How are staph infections diagnosed?
  • What are the treatments for staph infections?
  • Can staph infections be prevented?

Read the full article at MedlinePlus

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

Convert B95.61 to ICD-9-CMHistory

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

ICD-9-CM
041.11 Mth sus Stph aur els/NOS
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 B95.61Overview

Is B95.61 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B95.61 group to?

On inpatient claims, methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere maps to MS-DRG 867, 869, 868, with relative weights from 0.6784 to 2.1855 depending on complications. Higher weights mean higher Medicare reimbursement.

Can B95.61 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because methicillin susceptible Staphylococcus aureus infection 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 B95.61?

Under the General Equivalence Mappings, methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere converts to ICD-9-CM 041.11 (mth sus Stph aur els/NOS). The mapping is approximate, so confirm the match fits the documentation.