ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 23, 2018

See: Asthma

J45 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Use Additional Code
  • 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)
  • 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
  • detergent asthma (J69.8)
  • eosinophilic asthma (J82)
  • miner's asthma (J60)
  • wheezing NOS (R06.2)
  • wood asthma (J67.8)
  • asthma with chronic obstructive pulmonary disease (J44.9)
  • chronic asthmatic (obstructive) bronchitis (J44.9)
  • chronic obstructive asthma (J44.9)

More specific codes for Asthma

  • J45.2 - Mild intermittent asthma
    • J45.20 - Mild intermittent asthma, uncomplicated
    • J45.21 - Mild intermittent asthma with (acute) exacerbation
    • J45.22 - Mild intermittent asthma with status asthmaticus
  • J45.3 - Mild persistent asthma
    • J45.30 - Mild persistent asthma, uncomplicated
    • J45.31 - Mild persistent asthma with (acute) exacerbation
    • J45.32 - Mild persistent asthma with status asthmaticus
  • J45.4 - Moderate persistent asthma
    • J45.40 - Moderate persistent asthma, uncomplicated
    • J45.41 - Moderate persistent asthma with (acute) exacerbation
    • J45.42 - Moderate persistent asthma with status asthmaticus
  • J45.5 - Severe persistent asthma
    • J45.50 - Severe persistent asthma, uncomplicated
    • J45.51 - Severe persistent asthma with (acute) exacerbation
    • J45.52 - Severe persistent asthma with status asthmaticus
  • J45.9 - Other and unspecified asthma
    • J45.90 - Unspecified asthma
      • J45.901 - Unspecified asthma with (acute) exacerbation
      • J45.902 - Unspecified asthma with status asthmaticus
      • J45.909 - Unspecified asthma, uncomplicated
    • J45.99 - Other asthma
See also ICD 10 code for
Back to J45
See the ICD-10-CM Coding Guidelines.

Questions related to J45 Asthma

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.