MCMedicalCodingSoftware
J44.1

J44.1: Chronic obstructive pulmonary disease with (acute) exacerbation

Billable / specific codeICD-10-CM

J44.1 is a billable, specific ICD-10-CM code for chronic obstructive pulmonary disease with (acute) exacerbation. It is valid for submission on a claim.

Check J44.1 with the rest of the claim: free scrubber

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • chronic obstructive pulmonary disease [COPD] with acute bronchitis (J44.0)
  • lung diseases due to external agents (J60-J70)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Decompensated COPD
  • Decompensated COPD with (acute) exacerbation

Excludes2 inherited from the categories above J44.1

Not part of this code, but both may be coded when both are present.

Written on J44: Other chronic obstructive pulmonary disease

  • bronchiectasis (J47.-)
  • chronic bronchitis NOS (J42)
  • chronic simple and mucopurulent bronchitis (J41.-)
  • chronic tracheitis (J42)
  • chronic tracheobronchitis (J42)
  • emphysema without chronic bronchitis (J43.-)

Other codes that can never be billed with J44.1

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • J42Unspecified chronic bronchitis

Risk adjustment

J44.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders0.319 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

J44.1 is named in 27 Medicare coverage policies: 25 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A56566Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
  • A57067Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
  • A52466Nebulizers - Policy Article
  • A53057Billing and Coding: Home Health Occupational Therapy

Alphabetic index entries that lead here

  • Asthma, asthmatic›chronic obstructive›with›exacerbation(acute)
  • Disease, diseased›lung›obstructive›decompensated
  • Disease, diseased›pulmonary›chronic obstructive›decompensated
  • Asthma, asthmatic›with›chronic obstructive bronchitis›with›exacerbation(acute)
  • Asthma, asthmatic›with›chronic obstructive pulmonary disease›with›exacerbation(acute)
  • Bronchitis›asthmatic›chronic›with›exacerbation(acute)
  • Disease, diseased›pulmonary›chronic obstructive›with›exacerbation(acute)
  • Disease, diseased›lung›obstructive›decompensated›with›exacerbation(acute)
  • Disease, diseased›lung›obstructive›with›acute›exacerbation NEC
  • Disease, diseased›pulmonary›chronic obstructive›decompensated›with›exacerbation(acute)
  • Disease, diseased›lung›obstructive›with›bronchitis›with›exacerbation(acute)

The condition this code belongs to

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under J44

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.