2020 ICD-10-CM Diagnosis Code J45.90

Unspecified asthma

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • J45.90 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM J45.90 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of J45.90 - other international versions of ICD-10 J45.90 may differ.
Applicable To
  • Asthmatic bronchitis NOS
  • Childhood asthma NOS
  • Late onset asthma
The following code(s) above J45.90 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to J45.90:
  • J00-J99
    2020 ICD-10-CM Range J00-J99

    Diseases of the respiratory system

    Note
    • When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
    Type 2 Excludes
    • 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, 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)
    Diseases of the respiratory system
  • J40-J47
    2020 ICD-10-CM Range J40-J47

    Chronic lower respiratory diseases

    Type 1 Excludes
    • bronchitis due to chemicals, gases, fumes and vapors (J68.0)
    Type 2 Excludes
    Chronic lower respiratory diseases
  • J45
    ICD-10-CM Diagnosis Code J45

    Asthma

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • allergic (predominantly) asthma
    • allergic bronchitis NOS
    • allergic rhinitis with asthma
    • atopic asthma
    • extrinsic allergic asthma
    • hay fever with asthma
    • idiosyncratic asthma
    • intrinsic nonallergic asthma
    • nonallergic asthma
    Type 1 Excludes
    • detergent asthma (J69.8)
    • eosinophilic asthma (J82)
    • miner's asthma (J60)
    • wheezing NOS (R06.2)
    • wood asthma (J67.8)
    Type 2 Excludes
    • asthma with chronic obstructive pulmonary disease (J44.9)
    • chronic asthmatic (obstructive) bronchitis (J44.9)
    • chronic obstructive asthma (J44.9)
    Use Additional
    • code 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)
    Asthma
Clinical Information
  • A chronic disease in which the bronchial airways in the lungs become narrowed and swollen, making it difficult to breathe. Symptoms include wheezing, coughing, tightness in the chest, shortness of breath, and rapid breathing. An attack may be brought on by pet hair, dust, smoke, pollen, mold, exercise, cold air, or stress.
  • A chronic respiratory disease manifested as difficulty breathing due to the narrowing of bronchial passageways.
  • A form of bronchial disorder with three distinct components: airway hyper-responsiveness (respiratory hypersensitivity), airway inflammation, and intermittent airway obstruction. It is characterized by spasmodic contraction of airway smooth muscle, wheezing, and dyspnea (dyspnea, paroxysmal).
  • Asthma is a chronic disease that affects your airways. Your airways are tubes that carry air in and out of your lungs. If you have asthma, the inside walls of your airways become sore and swollen. In the United States, about 20 million people have asthma. Nearly 9 million of them are children. Children have smaller airways than adults, which makes asthma especially serious for them. Children with asthma may experience wheezing, coughing, chest tightness, and trouble breathing, especially early in the morning or at night. Many things can cause asthma, including
    • allergens - mold, pollen, animals
    • irritants - cigarette smoke, air pollution
    • weather - cold air, changes in weather
    • exercise
    • infections - flu, common cold
    when asthma symptoms become worse than usual, it is called an asthma attack. Asthma is treated with two kinds of medicines: quick-relief medicines to stop asthma symptoms and long-term control medicines to prevent symptoms.
  • Asthma is a chronic disease that affects your airways. Your airways are tubes that carry air in and out of your lungs. If you have asthma, the inside walls of your airways become sore and swollen. That makes them very sensitive, and they may react strongly to things that you are allergic to or find irritating. When your airways react, they get narrower and your lungs get less air.symptoms of asthma include
    • wheezing
    • coughing, especially early in the morning or at night
    • chest tightness
    • shortness of breath
    not all people who have asthma have these symptoms. Having these symptoms doesn't always mean that you have asthma. Your doctor will diagnose asthma based on lung function tests, your medical history, and a physical exam. You may also have allergy tests.when your asthma symptoms become worse than usual, it's called an asthma attack. Severe asthma attacks may require emergency care, and they can be fatal.asthma is treated with two kinds of medicines: quick-relief medicines to stop asthma symptoms and long-term control medicines to prevent symptoms.
  • Form of bronchial disorder associated with airway obstruction, marked by recurrent attacks of paroxysmal dyspnea, with wheezing due to spasmodic contraction of the bronchi.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To J45.90
J45.32 …… with status asthmaticus
J45.4 Moderate persistent asthma
J45.40 …… uncomplicated
J45.41 …… with (acute) exacerbation
J45.42 …… with status asthmaticus
J45.5 Severe persistent asthma
J45.50 …… uncomplicated
J45.51 …… with (acute) exacerbation
J45.52 …… with status asthmaticus
J45.9 Other and unspecified asthma
J45.90 Unspecified asthma
J45.901 …… with (acute) exacerbation
J45.902 …… with status asthmaticus
J45.909 …… uncomplicated
J45.99 Other asthma
J45.990 Exercise induced bronchospasm
J45.991 Cough variant asthma
J45.998 Other asthma
J47 Bronchiectasis
J47.0 Bronchiectasis with acute lower respiratory infection
J47.1 Bronchiectasis with (acute) exacerbation

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.