ICD-10 Diagnosis Code J45.901

Unspecified asthma with (acute) exacerbation

Diagnosis Code J45.901

ICD-10: J45.901
Short Description: Unspecified asthma with (acute) exacerbation
Long Description: Unspecified asthma with (acute) exacerbation
This is the 2018 version of the ICD-10-CM diagnosis code J45.901

Valid for Submission
The code J45.901 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 J45.901 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.
  • 493.92 - Asthma NOS w (ac) exac

  • Acute asthma
  • Acute exacerbation of asthma
  • Acute exacerbation of asthma co-occurrent with allergic rhinitis
  • Acute exacerbation of immunoglobulin E-mediated allergic asthma
  • Acute exacerbation of intrinsic asthma
  • Acute severe exacerbation of asthma
  • Acute severe exacerbation of immunoglobin E-mediated allergic asthma
  • Acute severe exacerbation of intrinsic asthma
  • Brittle asthma
  • Exacerbation of asthma
  • Immunoglobulin E-mediated allergic asthma
  • Non-allergic asthma

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)
  • Allergies, asthma, and molds (Medical Encyclopedia)
  • 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)

Previous Code
Previous Code J45.90
Next Code
J45.902 Next Code

Related pages

icd 9 code arthralgiagroup b strep meningitisicd 9 code for paresthesiaicd 9 code 434.91icd 9 foot painneck strain icd 9depression dx codebuttock pain icd 9diagnosis code for shoulder fractureicd 9 epididymitisicd9 code 496neurodermatitis scrotumicd 9 for allergic reactionkoilocytosis hpvesophageal mass icd 9stump amputationvulvar squamous cell hyperplasiaspinal stenosis diagnosis codeicd 9 code 174.9foreign body in respiratory tracticd 9 code for guaiac positive stoolchronic low back pain icd 9 codeenterococcus icd 9sternal pain icd 9alte newbornrenal cell carcinoma icd 9 codeicd 9 elevated d dimercerebellar tonsillar ectopia icd 9icd 9 code hemorrhoidsdermatomyositis icd 9schizophrenia icd 10icd 9 code elevated lfticd 9 code for 724.2transverse myelitis icd 9tia icd 9 codeicd 9 722.2vomiting icd 10 codeicd 9 codes for prostate cancer296.32 diagnosis codeulcer in intestinesicd 9 code for diplopiaicd9 code 496medical code 722.10icd 9 code for syncopedebility icd 9250.60icd 9 code for anemiasyncope 780.2icd 9 427.89dx code for colon cancericd 9 code for spondylosisicd 9 codes for rheumatoid arthritispna diagnosis codev62.89 phase of life problemicd9 low testosterone789.00 icdmalignant neoplasm of endometriumstenosis of nasolacrimal ductdiagnosis code for incisional herniapuritus aniicd 9 code for lupus anticoagulanthx of asthma466.0 diagnosis codetrichotillomania diagnosisicd 10 code for chronic renal failuredifficulty speaking icd 9icd 9 code for instabilityarterial tortuosity syndromedyspnea on exertionicd 9 for smokingpolyps vagina