DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

J44 Other chronic obstructive pulmonary disease

  • Header · not billable

J44 is not billable. The category heads 5 billable codes in FY2027, grouped under 4 subdivisions.

ICD-10 code by name

What is the ICD-10 code for COPD?
COPD ICD-10 code: J44.9 Chronic obstructive pulmonary disease, unspecified. NCHS writes COPD for chronic obstructive pulmonary disease. Search ICD-10 for COPD

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
Billable codes
5
Subdivisions
4
CC / MCC codes
2 / 0
HCC V28 codes
5
New FY2027
0
Index entries
36

Codes in J44

  1. J44.0
    Chronic obstructive pulmonary disease with (acute) lower respiratory infection
    BillableCC280
    Code also 1

    Code also

    • to identify the infection
  2. J44.1
    Chronic obstructive pulmonary disease with (acute) exacerbation 1 billable code
    BillableCC280
  3. J44.8
    Other specified chronic obstructive pulmonary disease
    Header
  4. J44.81
    Bronchiolitis obliterans and bronchiolitis obliterans syndrome
    Billable280
    Inclusion terms 1, Code first 7, Code also 4

    Inclusion terms

    • Obliterative bronchiolitis

    Code first

    • , if applicable:
    • complication of bone marrow transplant (T86.09) T86.09
    • complication of stem cell transplant (T86.5) T86.5
    • heart-lung transplant rejection (T86.31) T86.31
    • lung transplant rejection (T86.810) T86.810
    • other complications of heart-lung transplant (T86.39) T86.39
    • other complications of lung transplant (T86.818) T86.818

    Code also

    • , if applicable, associated conditions, such as:
    • chronic graft-versus-host disease (D89.811) D89.811
    • chronic lung allograft dysfunction (J4A.-) J4A
    • chronic respiratory conditions due to chemicals, gases, fumes and vapors (J68.4) J68.4
  5. J44.89
    Other specified chronic obstructive pulmonary disease
    Billable280
    Inclusion terms 2

    Inclusion terms

    • Chronic asthmatic (obstructive) bronchitis
    • Chronic emphysematous bronchitis
  6. J44.9
    Chronic obstructive pulmonary disease, unspecified 1 billable code
    Billable280

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At J44

Includes

  • 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

  • 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

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

Notes that also apply

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

  • Vanishing lung → J44.89
  • Bronchiolitis (acute) (infective) (subacute)fibrosa obliterans → J44.81
  • Bronchiolitis (acute) (infective) (subacute)obliterans → J44.81
  • Bronchiolitis (acute) (infective) (subacute)obliterative (chronic) (subacute) → J44.81
  • Syndromebronchiolitis obliterans → J44.81
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)chronic obstructive → J44.89
  • Bronchiolitis (acute) (infective) (subacute)chronic (fibrosing) → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)emphysematous (obstructive) → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)obstructive (chronic) (diffuse) → J44.89
  • Bronchiolitis (acute) (infective) (subacute)chronic (fibrosing)obliterative → J44.81
  • Bronchiolitis (acute) (infective) (subacute)obliteranssyndrome → J44.81
  • Bronchiolitis (acute) (infective) (subacute)obliterative (chronic) (subacute)due to chemicals, gases, fumes or vapors (inhalation) → J44.81
  • Bronchiolitis (acute) (infective) (subacute)obliterative (chronic) (subacute)due to fumes or vapors → J44.81
  • Syndromeobliteransbronchiolitis → J44.81
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)withchronic obstructive bronchitis → J44.89
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)withchronic obstructive pulmonary disease → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)withobstruction (airway) (lung) → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)asthmaticchronic → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)chronicasthmatic (obstructive) → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)chronicemphysematous → J44.89
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)chronicobstructive → J44.89
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)chronic obstructivewithacute lower respiratory infection → J44.0
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)acute or subacute (with bronchospasm or obstruction)withchronic obstructive pulmonary disease → J44.0
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)chronicwithairways obstruction → J44.89
  • Obstruction, obstructed, obstructiveairwaywithbronchitis (chronic) → J44.89
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)withchronic obstructive bronchitiswithacute lower respiratory infection → J44.0
  • Asthma, asthmatic (bronchial) (catarrh) (spasmodic)withchronic obstructive pulmonary diseasewithacute lower respiratory infection → J44.0
  • Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)asthmaticchronicwithacute lower respiratory infection → J44.0
  • Disease, diseasedpulmonarychronic obstructivewithacute bronchitis → J44.0
  • Disease, diseasedpulmonarychronic obstructivewithlower respiratory infection (acute) → J44.0
  • Disease, diseasedlungobstructive (chronic)withasthma → J44.89
  • Disease, diseasedlungobstructive (chronic)withbronchitis → J44.89
  • Dyspnea (nocturnal) (paroxysmal)asthmatic (bronchial)withbronchitischronic → J44.89
  • Disease, diseasedlungobstructive (chronic)withacutebronchitis → J44.0
  • Disease, diseasedlungobstructive (chronic)withacutelower respiratory infection → J44.0
  • Disease, diseasedlungobstructive (chronic)withbronchitiswithlower respiratory infection → J44.0

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

Hierarchy