2026 ICD-10-CM Diagnosis Code A71.9Trachoma, unspecified

ICD-10-CM Codes›A00–B99›A70-A74›A71

ICD-10-CM A71.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A71.9 is a billable ICD-10-CM diagnosis code for trachoma, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. Coders also document this condition as trachoma. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Bacterial infections and Other specified eye disorders.

Code Identity

ICD-10-CM Code
A71.9
Billable Status
Yes — Valid for Submission
Code Describes
Trachoma, unspecified
Short Description
Trachoma, unspecified
Same as the full description in the CMS dataset.
Parent Code
A71
Trachoma

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA70-A74Other diseases caused by chlamydiae
CategoryA71Trachoma
This CodeA71.9Trachoma, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Trachoma

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.

    • Trachoma, trachomatous

Clinical ClassificationClinical

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

CCSR INF003
Bacterial infections
Default principal diagnosis: inpatient No · outpatient No
CCSR EYE012
Other specified eye disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Trachoma

    a chronic infection of the conjunctiva and cornea caused by chlamydia trachomatis.

  • Chlamydia Trachomatis Antigen Measurement|CTRAG|Chlamydia trachomatis Antigen|Chlamydia trachomatis Antigen

    the determination of the chlamydia trachomatis antigen present in a sample.

  • Chlamydia trachomatis DNA Measurement|CTRDNA|Chlamydia trachomatis DNA|Chlamydia trachomatis DNA

    the determination of the amount of chlamydia trachomatis dna present in a sample.

  • Chlamydia trachomatis IgA Antibody Measurement

    the determination of the amount of chlamydia trachomatis iga antibody present in a sample.

  • Chlamydia trachomatis IgG Antibody Measurement

    the determination of the amount of chlamydia trachomatis igg antibody present in a sample.

  • Chlamydia trachomatis IgM Antibody Measurement

    the determination of the amount of chlamydia trachomatis igm antibody present in a sample.

  • Chlamydia trachomatis Measurement|CTR|Chlamydia trachomatis|Chlamydia trachomatis

    the determination of the amount of chlamydia trachomatis in a biological sample.

  • Chlamydia Trachomatis RNA Measurement|CTRRNA|Chlamydia trachomatis RNA|Chlamydia trachomatis RNA

    the determination of the amount of chlamydia trachomatis rna in a biological sample.

  • Chlamydia trachomatis|CHLAMYDIA TRACHOMATIS|CHLAMYDIA TRACHOMATIS

    a species of facultatively aerobic, gram-negative, coccobacilli assigned to the phylum chlamydiae. this species cannot be grown on an artificial medium, lacks peptidoglycan within the cell wall, forms elementary and reticulate bodies and can be identified using monoclonal antibodies (mabs) to epitopes in the vs 4 region of momp along with dna sequencing. c. trachomatis is an obligate intracellular parasite that can be transmitted through sexual contact causing infections of the genital tract and rectum and infertility in women, as well as cause eye infections.

  • Neonatal Chlamydia Conjunctivitis|Neonatal Chlamydial Conjunctivitis|Neonatal Inclusion Conjunctivitis|Neonatal Trachoma

    inflammation of the conjunctiva in a newborn due to chlamydia trachomatis which was acquired during labor and delivery.

  • Trachoma

    a bacterial infection of the eye caused by chlamydia trachomatis.

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 A71.9 to ICD-9-CMHistory

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

ICD-9-CM
076.9 Trachoma NOS
Exact Match The mapping is direct, with no qualifiers.

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 A71.9Overview

Is A71.9 (Trachoma) a billable code?

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

What MS-DRG does A71.9 group to?

When trachoma, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A71.9?

Under the General Equivalence Mappings, trachoma, unspecified converts to ICD-9-CM 076.9 (trachoma NOS). The mapping is a direct match.

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.