2026 ICD-10-CM Diagnosis Code A48.8Other specified bacterial diseases

ICD-10-CM Codes›A00–B99›A30-A49›A48

ICD-10-CM A48.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A48.8 is a billable ICD-10-CM diagnosis code for other specified bacterial diseases. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bacterial infections.

Code Identity

ICD-10-CM Code
A48.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified bacterial diseases
Short Description
Other specified bacterial diseases
Same as the full description in the CMS dataset.
Parent Code
A48
Other bacterial diseases, not elsewhere classified

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA30-A49Other bacterial diseases
CategoryA48Other bacterial diseases, not elsewhere classified
This CodeA48.8Other specified bacterial diseases

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Clostridioides difficile infection
  • Dermatophilosis caused by Dermatophilus congolensis
  • Disease caused by Gram-negative bacillus
  • Disease caused by Gram-negative cocci
  • Disease caused by Gram-positive bacteria
  • Disease caused by Gram-positive coccus
  • Endotoxemia
  • Endotoxicosis
  • Eperythrozoonosis
  • Extraintestinal infection caused by Clostridioides difficile
  • Iatrogenic infection caused by Clostridium botulinum
  • Infection caused by carbapenem resistant bacteria
  • Infection caused by Clostridium botulinum
  • Infection caused by Fusobacterium
  • Infection caused by Rhodococcus hoagii
  • Infection due to carbapenem resistant Enterobacteriaceae
  • Necrobacillosis
  • Non-pyogenic bacterial infection of skin
  • Recalcitrant erythematous desquamating disorder
  • Rhinoscleroma
  • Trichomycosis axillaris
  • Trichomycosis pubis
  • Tyzzer's disease
  • Yersiniosis

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.

    • Dermatophilosis
    • Disease, diseased
      • bacterial
        • specified NEC
    • Infection, infected, infective(opportunistic)
      • bacterial NOS
        • specified NEC
    • Lepothrix
    • Meningitis(basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
      • in (due to)
        • bacterial disease NEC
    • Rhinoscleroma
    • Scleroma nasi
    • Streptotrichosis
    • Trichomycosis
      • axillaris
    • Trichosis axillaris

Clinical ClassificationClinical

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

CCSR INF003
Bacterial infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Endotoxemia

    a condition characterized by the presence of endotoxins in the blood. on lysis, the outer cell wall of gram-negative bacteria enters the systemic circulation and initiates a pathophysiologic cascade of pro-inflammatory mediators.

  • Rhinoscleroma

    a granulomatous disease caused by klebsiella rhinoscleromatis infection. despite its name, this disease is not limited to the nose and nasopharynx but may affect any part of the respiratory tract, sometimes with extension to the lip and the skin.

  • Endotoxins

    toxins closely associated with the living cytoplasm or cell wall of certain microorganisms, which do not readily diffuse into the culture medium, but are released upon lysis of the cells.

  • Yersiniosis

    an infection that is caused by yersinia enterocolitica or yersinia pseudotuberculosis, and that is usually acquired by consumption of contaminated meat, water, or unpasteurized milk. it can also be transmitted vertically, pre- or perinatally, from mother to infant. manifestation of symptoms depends on the infecting species and mode of acquisition, and can range from gastrointestinal syndromes to septicemia.

Patient EducationClinical

Bacterial Infections

Bacteria are tiny organisms (living things) that have only one cell. Under a microscope, they look like balls, rods, or spirals. They can be found almost everywhere on Earth. There are lots of bacteria in and on your body. In fact, your body has about 10 times more bacteria cells than human cells.

The full article covers:

  • What are bacteria?
  • How do bacterial infections spread?
  • What are the treatments for bacterial infections?
  • Can bacterial infections be prevented?

Read the full article at MedlinePlus

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

Convert A48.8 to ICD-9-CMHistory

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

ICD-9-CM
040.1 Rhinoscleroma
Approximate The match is approximate rather than exact.
ICD-9-CM
040.89 Bacterial diseases 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 A48.8Overview

Is A48.8 (Other bacterial diseases, not elsewhere classified) a billable code?

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

What MS-DRG does A48.8 group to?

When other specified bacterial diseases is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A48.8?

Under the General Equivalence Mappings, other specified bacterial diseases converts to ICD-9-CM 040.1 (rhinoscleroma) and 040.89 (bacterial diseases 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.