All ICD10 Codes

J44

Non-Billable
ChapterJ00–J99
Rankcategory
Official Description

Other chronic obstructive pulmonary disease

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 10: Diseases of the Respiratory System (J00-J99).

CH10 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Use Additional Code
  • code, where applicable, 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.-)
  • tobacco use (Z72.0)

J40-J4A Parent Instructions

Excludes1(Not coded here)
  • bronchitis due to chemicals, gases, fumes and vapors (J68.0)
Excludes2(Not included here)
  • cystic fibrosis (E84.-)

Instructional Notes

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(Not included here)
  • bronchiectasis (J47.-)
  • chronic bronchitis NOS (J42)
  • chronic simple and mucopurulent bronchitis (J41.-)
  • chronic tracheitis (J42)
  • chronic tracheobronchitis (J42)
  • emphysema without chronic bronchitis (J43.-)
Code Also
  • type of asthma, if applicable (J45.-)

Clinical Hierarchy

CH10Diseases of the respiratory system (J00-J99)
J40-J4AChronic lower respiratory diseases (J40-J4A)
J44Other chronic obstructive pulmonary disease
J44.0Chronic obstructive pulmonary disease with (acute) lower respiratory infection
J44.1Chronic obstructive pulmonary disease with (acute) exacerbation
J44.8Other specified chronic obstructive pulmonary disease
J44.9Chronic obstructive pulmonary disease, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to J44:

blockJ40-J4A
Chronic lower respiratory diseases (J40-J4A)
View context instructions
chapterCH10
Diseases of the respiratory system (J00-J99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to J44. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Asthma, asthmatic (bronchial) (catarrh) (spasmodic)9 unique routes
chronic obstructive→J44(3 variants)
with(2 variants)
acute lower respiratory infection→J44
exacerbation (acute)→J44
with(6 variants)
chronic obstructive bronchitis→J44(3 variants)
with(2 variants)
acute lower respiratory infection→J44
exacerbation (acute)→J44
chronic obstructive pulmonary disease→J44(3 variants)
with(2 variants)
acute lower respiratory infection→J44
exacerbation (acute)→J44
Bronchiolitis (acute) (infective) (subacute)8 unique routes
chronic (fibrosing)→J44(2 variants)
obliterative→J44
fibrosa obliterans→J44
obliterans→J44(2 variants)
syndrome→J44
obliterative (chronic) (subacute)→J44(3 variants)
due to chemicals, gases, fumes or vapors (inhalation)→J44
due to fumes or vapors→J44
Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous)8 unique routes
acute or subacute (with bronchospasm or obstruction)
with
chronic obstructive pulmonary disease→J44
asthmatic(3 variants)
chronic→J44(3 variants)
with(2 variants)
acute lower respiratory infection→J44
exacerbation (acute)→J44
chronic(4 variants)
asthmatic (obstructive)→J44
emphysematous→J44
obstructive→J44
with
airways obstruction→J44

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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