Chronic obstructive pulmonary disease with (acute) exacerbation
Diseases of the Respiratory System·Other chronic obstructive pulmonary disease·subcategory·FY 2027
COPD: COPD (chronic obstructive pulmonary disease) is a group of lung diseases that make it hard to breathe and get worse over time. Normally, the airways and air sacs in your lungs are elastic or stretchy. When you breathe in, the airways bring air to the air sacs. The air sacs fill up with air, like a small balloon. When you breathe out, the air sacs deflate, and the air goes out. If you have COPD, less air flows in and out of your airways because of one or more problems:
Read more about copd on MedlinePlus · Source: MedlinePlus, National Library of Medicine
Also indexed as: Asthma, with, chronic obstructive bronchitis, with, exacerbation; Asthma, with, chronic obstructive pulmonary disease, with, exacerbation; Asthma, chronic obstructive, with, exacerbation; Bronchitis, asthmatic, chronic, with, exacerbation; Disease, lung, obstructive, with, acute, exacerbation NEC; Disease, lung, obstructive, with, bronchitis, with, exacerbation; Disease, lung, obstructive, decompensated; Disease, lung, obstructive, decompensated, with, exacerbation; Disease, pulmonary, chronic obstructive, with, exacerbation; Disease, pulmonary, chronic obstructive, decompensated; Disease, pulmonary, chronic obstructive, decompensated, with, exacerbation
Instructional notes
Also applies, from J44: Other chronic obstructive pulmonary disease
These notes sit on J44 and apply to every code under it, including J44.1.
Includes: conditions that are coded here
- asthma with chronic obstructive pulmonary disease
- chronic asthmatic (obstructive) bronchitis
- chronic bronchitis with airway obstruction
- chronic bronchitis with emphysema
- chronic emphysematous bronchitis
- chronic obstructive asthma
- chronic obstructive bronchitis
- chronic obstructive tracheobronchitis
Excludes2: not included here, code separately if applicable
Code also: add a code for this too, order depends on the encounter
- type of asthma, if applicable (J45.-)
Also applies, from Chronic lower respiratory diseases (J40-J4B)
These notes sit on J40-J4B and apply to every code under it, including J44.1.
Where J44.1 sits
- J40-J4B Chronic lower respiratory diseases (J40-J4B)
- J44 Other chronic obstructive pulmonary disease
- J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation
MS-DRGs
As the principal diagnosis, this code groups to these MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
ICD-9-CM equivalent
Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).
- 491.21 Obstructive chronic bronchitis with (acute) exacerbation (approximate)
- 493.22 Chronic obstructive asthma with (acute) exacerbation (approximate)