ICD-10-CM 2027 diagnosis code
J47.1Bronchiectasis with (acute) exacerbation
J47.1 is a valid, billable ICD-10-CM code for bronchiectasis with (acute) exacerbation. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About J47.1
J47.1 is the ICD-10-CM diagnosis code for bronchiectasis with (acute) exacerbation. It belongs to category J47 (bronchiectasis), block J40-J4B (chronic lower respiratory diseases) and chapter 10 (diseases of the respiratory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within J47 (bronchiectasis), J47.1 is specifically for bronchiectasis with (acute) exacerbation. Related codes cover with acute lower respiratory infection (J47.0) and uncomplicated (J47.9).
Use an additional code to identify: exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and 1 more.
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 190 (Chronic Obstructive Pulmonary Disease with MCC, relative weight 1.0748), DRG 191 (Chronic Obstructive Pulmonary Disease with CC, relative weight 0.8261) and DRG 192 (Chronic Obstructive Pulmonary Disease without CC/MCC, relative weight 0.6288), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 494.1 (bronchiectasis with acute exacerbation).
Notes that apply from higher levels
Instructions written at a parent level also apply to J47.1.
› From J47 Bronchiectasis
- bronchiolectasis
Broader instructions also apply from J40-J4B Chronic lower respiratory diseases and Chapter 10: Diseases of the respiratory system.
Alphabetic index entries
11 entriesTerms in the official ICD-10-CM index that lead to J47.1.
- 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)
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 04 · Diseases and Disorders of the Respiratory System
ICD-9-CM equivalent
Converter →- 494.1Bronchiectasis with acute exacerbationapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about J47.1
Is J47.1 billable?
- Yes. J47.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J47.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J47.1 as a principal diagnosis.
Is J47.1 a CC or MCC?
- J47.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does J47.1 group to?
- J47.1 is used in the MS-DRG v44.0 logic for MS-DRG 190 (Chronic Obstructive Pulmonary Disease with MCC), MS-DRG 191 (Chronic Obstructive Pulmonary Disease with CC) and MS-DRG 192 (Chronic Obstructive Pulmonary Disease without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for J47.1?
- The CMS General Equivalence Mappings map J47.1 to ICD-9-CM 494.1.