2026 ICD-10-CM Diagnosis Code A38Scarlet fever

ICD-10-CM CodesA00–B99A30-A49A38

ICD-10-CM A38
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A38 is a non-billable ICD-10-CM category code for scarlet fever, so it cannot be submitted on claims. Use a more specific code from this category instead, such as A38.0, A38.1, A38.8, and A38.9.

Code Identity

ICD-10-CM Code
A38
Billable Status
No — Non-Billable Category
Code Describes
Scarlet fever
Short Description
Scarlet fever
Same as the full description in the CMS dataset.
Chapter
A30-A49
Other bacterial diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA30-A49Other bacterial diseases
CategoryA38Scarlet fever
This CodeA38Scarlet fever

Specific Coding for Scarlet feverOverview

Non-specific codes like A38 require more characters. Use one of these billable codes instead:

  • Use A38.0 for Scarlet fever with otitis media

  • Use A38.1 for Scarlet fever with myocarditis

  • Use A38.8 for Scarlet fever with other complications

  • Use A38.9 for Scarlet fever, uncomplicated

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • scarlatina

Type 2 Excludes

  • streptococcal sore throat J02.0

Clinical InformationClinical

  • Scarlet Fever

    infection with group a streptococci that is characterized by tonsillitis and pharyngitis. an erythematous rash is commonly present.
  • Scarlet Fever

    a streptococcal infection, mainly occurring among children, that is characterized by a red skin rash, sore throat, and fever.

Patient EducationClinical

Streptococcal Infections

Strep is short for Streptococcus, a type of bacteria. There are several types. Two of them cause most of the strep infections in people: group A and group B.

Read the full article at MedlinePlus

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

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 A38Overview

Is A38 (Scarlet fever) a billable code?

No. This is a category header that groups the codes for scarlet fever, and headers cannot be submitted on claims. Claims for scarlet fever need a more specific code from this category, such as A38.0, A38.1, and A38.8.