DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

J44.1 diagnosis code · Billable code · FY2027

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

  • Billable
  • CC
  • HCC 280
  • POA reported

J44.1 ICD-10 code: a billable diagnosis code in FY2027, one of 5 billable codes in category J44.

ICD-10 code by name

What is the ICD-10 code for COPD exacerbation?
COPD exacerbation ICD-10 code: J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation. NCHS writes COPD for chronic obstructive pulmonary disease. Search ICD-10 for COPD exacerbation

Where it sits

  1. Chapter 10 Diseases of the respiratory system (J00-J99)
  2. J40-J4B Chronic lower respiratory diseases (J40-J4B)
  3. J44 Other chronic obstructive pulmonary disease
  4. J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation
CC / MCC
CC
MS-DRG
190-192
HCC V28
280
POA
Reported
Code Editor
–
Index entries
11

Instructions

At J44.1

Inclusion terms

  • Decompensated COPD
  • Decompensated COPD with (acute) exacerbation

Excludes2

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

Notes that also apply

Includes from J44

  • 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 from J44

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

Code also from J44

  • type of asthma, if applicable (J45.-) J45

Block J40-J4B instructions (Excludes1 1, Excludes2 1): printed on the block page.

Chapter 10 instructions (Notes 1, Excludes2 9, Use additional code 7): printed on the chapter 10 page.

Index entries

  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)chronic obstructivewithexacerbation (acute) → J44.1
  • Disease, diseasedlungobstructive (chronic)decompensated → J44.1
  • Disease, diseasedpulmonarychronic obstructivedecompensated → J44.1
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)withchronic obstructive bronchitiswithexacerbation (acute) → J44.1
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)withchronic obstructive pulmonary diseasewithexacerbation (acute) → J44.1
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)asthmaticchronicwithexacerbation (acute) → J44.1
  • Disease, diseasedpulmonarychronic obstructivewithexacerbation (acute) → J44.1
  • Disease, diseasedlungobstructive (chronic)withacuteexacerbation NEC → J44.1
  • Disease, diseasedlungobstructive (chronic)decompensatedwithexacerbation (acute) → J44.1
  • Disease, diseasedpulmonarychronic obstructivedecompensatedwithexacerbation (acute) → J44.1
  • Disease, diseasedlungobstructive (chronic)withbronchitiswithexacerbation (acute) → J44.1

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for J44.1
CC / MCCCC
PDX exclusion list0993 (6 codes)
Appendix BMDC 04 Diseases and Disorders of the Respiratory System, MS-DRG 190-192 (Chronic Obstructive Pulmonary Disease with MCC…)
Code Editor–
POAReported
HCC V28HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders

CC as a secondary diagnosis, not when the principal diagnosis is on its PDX exclusion list.

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy