ICD-10 J45
Non-Billable HeaderAsthma
About ICD-10-CM J45
ICD-10-CM code J45 represents Asthma. This is a non-billable header code in the Respiratory System chapter (block J45). The 2026 edition of ICD-10-CM J45 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with J45. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- detergent asthma (J69.8)
- miner's asthma (J60)
- wheezing NOS (R06.2)
- wood asthma (J67.8)
Type 2 Excludes
Not included here, the excluded code is not part of J45, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- 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)
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
Use Additional Code
When coding J45, also report these additional codes when applicable.
- 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)
Medicare LCD Coverage for J45
Local Coverage Determinations (LCDs) from CMS MACs that list J45 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing J45.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but J45 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with J45
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To J45
Other codes in section J40-J4A (Chronic lower respiratory diseases).
ICD-10 J45, Billing FAQ
Is ICD-10 code J45 billable? +
No, J45 is a non-billable header code. Use a more specific child code from block J45 when submitting claims.
What codes are Type 1 Excludes for J45? +
Type 1 Excludes (never code together with J45): detergent asthma (J69.8); miner's asthma (J60); wheezing NOS (R06.2)
What codes are Type 2 Excludes for J45? +
Type 2 Excludes (may be coded together when both conditions exist): asthma with chronic obstructive pulmonary disease (J44.89); chronic asthmatic (obstructive) bronchitis (J44.89); chronic obstructive asthma (J44.89)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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