2026 ICD-10-CM Diagnosis Code J47.1Bronchiectasis with (acute) exacerbation

ICD-10-CM Codes›J00–J99›J40-J4A›J47

ICD-10-CM J47.1
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

J47.1 is a billable ICD-10-CM diagnosis code for bronchiectasis with (acute) exacerbation. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 190 through 192. Coders also document this condition as acute exacerbation of bronchiectasis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Chronic obstructive pulmonary disease and bronchiectasis.

Code Identity

ICD-10-CM Code
J47.1
Billable Status
Yes — Valid for Submission
Code Describes
Bronchiectasis with (acute) exacerbation
Short Description
Bronchiectasis with (acute) exacerbation
Same as the full description in the CMS dataset.
Parent Code
J47
Bronchiectasis

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ40-J4AChronic lower respiratory diseases
CategoryJ47Bronchiectasis
This CodeJ47.1Bronchiectasis with (acute) exacerbation

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute exacerbation of bronchiectasis
  • Exacerbation of bronchiectasis caused by infection

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.

    • Bronchiectasis(cylindrical) (diffuse) (fusiform) (localized) (saccular)
      • with
        • exacerbation (acute)
    • Dilatation
      • bronchial
        • with
          • exacerbation (acute)
    • Disease, diseased
      • lung
        • obstructive (chronic)
          • with
            • bronchiectasis
              • with
                • exacerbation (acute)
    • Mounier-Kuhn syndrome
      • with bronchiectasis
        • exacerbation (acute)
    • Mounier-Kuhn syndrome
      • acquired
        • with bronchiectasis
          • with
            • exacerbation (acute)
    • Obstruction, obstructed, obstructive
      • airway
        • with
          • bronchiectasis
            • with
              • exacerbation (acute)
    • Obstruction, obstructed, obstructive
      • airway
        • chronic
          • with
            • bronchiectasis
              • with
                • exacerbation (acute)
    • Syndrome
      • Mounier-Kuhn
        • with bronchiectasis
          • with
            • exacerbation (acute)
    • Syndrome
      • Mounier-Kuhn
        • acquired
          • with bronchiectasis
            • with
              • exacerbation (acute)
    • Tracheobronchomegaly
      • with bronchiectasis
        • with
          • exacerbation (acute)
    • Tracheobronchomegaly
      • acquired
        • with bronchiectasis
          • with
            • exacerbation (acute)

Clinical ClassificationClinical

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

CCSR RSP008
Chronic obstructive pulmonary disease and bronchiectasis
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Bronchiectasis

    persistent abnormal dilatation of the bronchi.

  • Kartagener Syndrome

    an autosomal recessive disorder characterized by a triad of dextrocardia; infertility; and sinusitis. the syndrome is caused by mutations of dynein genes encoding motility proteins which are components of sperm tails, and cilia in the respiratory and the reproductive tracts.

Patient EducationClinical

Bronchial Disorders

When you breathe in, the air travels down through your trachea (windpipe). It then goes through two tubes to your lungs. These tubes are your bronchi. Bronchial disorders can make it hard for you to breathe.

Read the full article at MedlinePlus

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

Convert J47.1 to ICD-9-CMHistory

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

ICD-9-CM
494.1 Bronchiectasis w ac exac
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 J47.1Overview

Is J47.1 (Bronchiectasis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report bronchiectasis with (acute) exacerbation on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does J47.1 group to?

When bronchiectasis with (acute) exacerbation is the principal diagnosis on an inpatient stay, it groups to MS-DRG 190, 191, 192, with relative weights from 0.6420 to 1.1077 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of J47.1?

Under the General Equivalence Mappings, bronchiectasis with (acute) exacerbation converts to ICD-9-CM 494.1 (bronchiectasis w ac exac). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.