ICD-10 Diagnosis Code J45.909

Unspecified asthma, uncomplicated

Diagnosis Code J45.909

ICD-10: J45.909
Short Description: Unspecified asthma, uncomplicated
Long Description: Unspecified asthma, uncomplicated
This is the 2018 version of the ICD-10-CM diagnosis code J45.909

Valid for Submission
The code J45.909 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the respiratory system (J00–J99)
    • Chronic lower respiratory diseases (J40-J47)
      • Asthma (J45)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code J45.909 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


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.

  • Adverse reaction caused by antiplatelet agent
  • Adverse reaction caused by salicylate
  • Airways obstruction irreversible
  • Allergic asthma
  • Allergic asthma caused by Dermatophagoides farinae
  • Allergic asthma caused by Dermatophagoides pteronyssinus
  • Allergic bronchitis
  • Allergic-infective asthma
  • Aspirin adverse reaction
  • Aspirin-induced asthma
  • Asthma
  • Asthma - currently active
  • Asthma - currently dormant
  • Asthma causes daytime symptoms 1 to 2 times per month
  • Asthma causes daytime symptoms most days
  • Asthma causes night symptoms 1 to 2 times per month
  • Asthma causing night waking
  • Asthma confirmed
  • Asthma daytime symptoms
  • Asthma disturbing sleep
  • Asthma disturbs sleep frequently
  • Asthma disturbs sleep weekly
  • Asthma in mother complicating childbirth
  • Asthma never causes daytime symptoms
  • Asthma never causes night symptoms
  • Asthma never disturbs sleep
  • Asthma never restricts exercise
  • Asthma night-time symptoms
  • Asthma not disturbing sleep
  • Asthma not limiting activities
  • Asthma treatment compliance satisfactory
  • Asthma treatment compliance unsatisfactory
  • Asthma with irreversible airway obstruction
  • Asthma without status asthmaticus
  • Asthmatic bronchitis
  • Chemical-induced asthma
  • Chemical-induced asthma
  • Chemical-induced asthma
  • Childhood asthma
  • Chronic allergic bronchitis
  • Drug-induced asthma
  • Extrinsic asthma without status asthmaticus
  • Hay fever with asthma
  • Immunoglobulin E-mediated allergic asthma
  • Immunoglobulin E-mediated allergic asthma
  • Inhaled steroid-dependent asthma
  • Intrinsic asthma without status asthmaticus
  • Late onset asthma
  • Mild asthma
  • Mixed asthma
  • Non-allergic asthma
  • Non-allergic drug hypersensitivity disorder
  • Non-immunoglobulin E mediated allergic asthma
  • Occupational asthma
  • Persistent asthma
  • Persistent asthma, well controlled
  • Reactive airway disease
  • Seasonal allergic rhinitis
  • Seasonal asthma
  • Steroid dependent asthma
  • Uncomplicated asthma

Index of Diseases and Injuries
References found for the code J45.909 in the Index of Diseases and Injuries:

Information for Patients


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.

NIH: National Heart, Lung, and Blood Institute

  • Allergies, asthma, and dust (Medical Encyclopedia)
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  • Allergies, asthma, and pollen (Medical Encyclopedia)
  • Asthma (Medical Encyclopedia)
  • Asthma - control drugs (Medical Encyclopedia)
  • Asthma - quick-relief drugs (Medical Encyclopedia)
  • Exercise-induced asthma (Medical Encyclopedia)
  • How to breathe when you are short of breath (Medical Encyclopedia)
  • How to use a nebulizer (Medical Encyclopedia)
  • How to use an inhaler - no spacer (Medical Encyclopedia)
  • How to use an inhaler - with spacer (Medical Encyclopedia)
  • Pulmonary function tests (Medical Encyclopedia)
  • Signs of an asthma attack (Medical Encyclopedia)

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