ICD-10 Diagnosis Code J44.9

Chronic obstructive pulmonary disease, unspecified

Diagnosis Code J44.9

ICD-10: J44.9
Short Description: Chronic obstructive pulmonary disease, unspecified
Long Description: Chronic obstructive pulmonary disease, unspecified
This is the 2018 version of the ICD-10-CM diagnosis code J44.9

Valid for Submission
The code J44.9 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the respiratory system (J00–J99)
    • Chronic lower respiratory diseases (J40-J47)
      • Other chronic obstructive pulmonary disease (J44)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code J44.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Airways obstruction irreversible
  • Asthma with irreversible airway obstruction
  • Asthma-chronic obstructive pulmonary disease overlap syndrome
  • Asthmatic bronchitis
  • Bronchiolitis fibrosa obliterans
  • Chronic asthmatic bronchitis
  • Chronic obliterative bronchiolitis
  • Chronic obstructive bronchitis
  • Chronic obstructive lung disease
  • End stage chronic obstructive airways disease
  • Mild chronic obstructive pulmonary disease
  • Moderate chronic obstructive pulmonary disease
  • Obliterating fibrous bronchiolitis
  • Obliterative bronchiolitis
  • Pulmonary hypertension due to chronic obstructive pulmonary disease
  • Pulmonary hypertension due to lung disease and/or hypoxia
  • Pulmonary hypertension due to pulmonary disease with mixed restrictive and obstructive pattern
  • Severe chronic obstructive pulmonary disease
  • Subacute obliterative bronchiolitis
  • Tension pneumatocele

Index of Diseases and Injuries
References found for the code J44.9 in the Index of Diseases and Injuries:

Information for Patients


COPD (chronic obstructive pulmonary disease) makes it hard for you to breathe. The two main types are chronic bronchitis and emphysema. The main cause of COPD is long-term exposure to substances that irritate and damage the lungs. This is usually cigarette smoke. Air pollution, chemical fumes, or dust can also cause it.

At first, COPD may cause no symptoms or only mild symptoms. As the disease gets worse, symptoms usually become more severe. They include

  • A cough that produces a lot of mucus
  • Shortness of breath, especially with physical activity
  • Wheezing
  • Chest tightness

Doctors use lung function tests, imaging tests, and blood tests to diagnose COPD. There is no cure. Treatments may relieve symptoms. They include medicines, oxygen therapy, surgery, or a lung transplant. Quitting smoking is the most important step you can take to treat COPD.

NIH: National Heart, Lung, and Blood Institute

  • Blood gases (Medical Encyclopedia)
  • Breathing Better with a COPD Diagnosis - NIH (National Heart, Lung, and Blood Institute)
  • Chronic obstructive pulmonary disease (Medical Encyclopedia)
  • Chronic obstructive pulmonary disease - adults - discharge (Medical Encyclopedia)
  • Chronic obstructive pulmonary disease - control drugs (Medical Encyclopedia)
  • Chronic obstructive pulmonary disease - quick-relief drugs (Medical Encyclopedia)
  • COPD -- how to use a nebulizer (Medical Encyclopedia)
  • COPD -- managing stress and your mood (Medical Encyclopedia)
  • COPD and other health problems (Medical Encyclopedia)
  • COPD flare-ups (Medical Encyclopedia)
  • COPD: Are You at Risk? - NIH (National Heart, Lung, and Blood Institute)
  • Day to day with COPD (Medical Encyclopedia)
  • How to breathe when you are short of breath (Medical Encyclopedia)
  • Pulmonary function tests (Medical Encyclopedia)
  • Smoking and COPD (Medical Encyclopedia)
  • Using oxygen at home (Medical Encyclopedia)

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