ICD-10 Code J44.9

Chronic obstructive pulmonary disease, unspecified

Version 2019 Billable Code
ICD-10: J44.9
Short Description:Chronic obstructive pulmonary disease, unspecified
Long Description:Chronic obstructive pulmonary disease, unspecified

Valid for Submission

ICD-10 J44.9 is a billable code used to specify a medical diagnosis of chronic obstructive pulmonary disease, unspecified. The code is valid for the year 2019 for the submission of 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 Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code J44.9 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 190 - CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITH MCC
  • 191 - CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITH CC
  • 192 - CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITHOUT CC/MCC

Convert J44.9 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 491.20 - Obst chr bronc w/o exac (Approximate Flag)
  • 493.20 - Chronic obst asthma NOS (Approximate Flag)
  • 496 - Chr airway obstruct NEC (Approximate Flag)

Synonyms

The following clinical terms are approximate synonyms:

  • Airways obstruction irreversible
  • Asthma with irreversible airway obstruction
  • Asthma-chronic obstructive pulmonary disease overlap syndrome
  • Asthmatic bronchitis
  • Chronic asthmatic bronchitis
  • Chronic obliterative bronchiolitis
  • Chronic obstructive lung disease
  • Chronic obstructive pulmonary disease monitoring due
  • Emphysematous bronchitis
  • End stage chronic obstructive airways disease
  • Mild chronic obstructive pulmonary disease
  • Moderate chronic obstructive pulmonary disease
  • 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 to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code J44.9 are found in the index:


Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references for the code J44.9 are found in the tabular index:

  • Inclusion Terms:
    • Chronic obstructive airway disease NOS
    • Chronic obstructive lung disease NOS
  • Type 2 Excludes Notes:
    • lung diseases due to external agents (J60-J70)

Information for Patients


COPD

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)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
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.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.