Get started free

J45

Non-billable

Asthma

J45 is the ICD-10-CM code for Asthma. It is a non-billable category code — use a more specific child code such as J45.2 for billing.

Status
Header (non-billable)
Chapter
J00-J99
Subcodes
5
Edition
FY2026

J00-J99 Diseases of the respiratory system

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

Excludes1 — not coded here

  • •detergent asthma (J69.8)
  • •miner's asthma (J60)
  • •wheezing NOS (R06.2)
  • •wood asthma (J67.8)

Excludes2 — not included here

  • •asthma with chronic obstructive pulmonary disease (J44.89)
  • •chronic asthmatic (obstructive) bronchitis (J44.89)
  • •chronic obstructive asthma (J44.89)
  • •other specified chronic obstructive pulmonary disease (J44.89)

Use additional code

  • •code to identify:
  • •eosinophilic asthma (J82.83)
  • •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)

Frequently asked questions

What is ICD-10 code J45?
J45 is the ICD-10-CM code for "Asthma". It falls under J00-J99 Diseases of the respiratory system.
Is J45 a billable code?
No — J45 is a non-billable header code. Use a more specific child code (such as J45.2) for billing.
What are the subcodes of J45?
J45 has 5 more specific child codes, including J45.2, J45.3, J45.4.
What is excluded from J45?
Excludes1 (not coded here): detergent asthma (J69.8); miner's asthma (J60); wheezing NOS (R06.2); wood asthma (J67.8).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →