ICDwise
J45 ⚠ Non-billable

Asthma

ICD-10-CM · FY2026 · Diseases of the Respiratory System

Code
J45
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Respiratory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

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 — never code together
  • detergent asthma (J69.8)
  • miner's asthma (J60)
  • wheezing NOS (R06.2)
  • wood asthma (J67.8)
Excludes2 — not included here, but may code together
  • 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?
ICD-10-CM code J45 represents Asthma. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Respiratory System chapter, effective October 1, 2025 – September 30, 2026.
Is J45 billable?
No. J45 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is J45 in?
J45 belongs to the Diseases of the Respiratory System chapter (J00–J99) of ICD-10-CM.

Related codes in the J45 category

J45.2 Mild intermittent asthma Non-billable J45.3 Mild persistent asthma Non-billable J45.4 Moderate persistent asthma Non-billable J45.5 Severe persistent asthma Non-billable J45.9 Other and unspecified asthma Non-billable J45.20 Mild intermittent asthma, uncomplicated Billable J45.21 Mild intermittent asthma with (acute) exacerbation Billable J45.22 Mild intermittent asthma with status asthmaticus Billable

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