The primary ICD-10-CM code for allergic rhinitis is J30.9 (Allergic rhinitis, unspecified), a billable code reported when the specific allergen or trigger is not documented in the clinical record.
Primary codes
Billable
Billable
Extension
—
7th character
—
POA exempt
No
Coding risks
- Assigning when documentation supports a more specific code
Hierarchy
Code comparison
Compare key differences between related codes to select the most specific option.
| Code | Description | Scenario |
|---|---|---|
| J30.9 | Allergic rhinitis, unspecified | Allergic rhinitis documented without an identified trigger, seasonality, or specific allergen. |
| J30.1 | Allergic rhinitis due to pollen | Allergic rhinitis with pollen specifically documented as the trigger, such as hay fever or pollinosis. |
| J30.2 | Other seasonal allergic rhinitis | Patient with seasonal allergic rhinitis from a non-pollen seasonal trigger such as mold spores. |
| J30.81 | Allergic rhinitis due to animal (cat) (dog) hair and dander | Allergic rhinitis with documented trigger of cat or dog hair and dander exposure. |
Select the most specific code supported by the encounter documentation. More specific codes improve reimbursement accuracy and reduce audit risk.
Code ranges
Vasomotor and allergic rhinitis
Category covering nasal inflammation from vasomotor causes and allergic triggers, including seasonal, perennial, and animal-related allergens.
Other diseases of upper respiratory tract
Sub-chapter grouping non-infectious upper airway conditions such as rhinitis, sinusitis, nasal polyps, and disorders of the vocal cords.
Chronic rhinitis, nasopharyngitis and pharyngitis
Category for chronic non-allergic inflammation of the nasal mucosa, nasopharynx, and pharynx.
Asthma
Category for chronic reversible airway inflammation and bronchoconstriction, classified by severity and control status.
Conjunctivitis
Category for inflammation of the conjunctiva from allergic, infectious, or other causes affecting the ocular surface.
Coding risks
Avoid these common coding issues when reporting Allergic Rhinitis.
Impact
Assigning J30.9 without a documented allergen may miscode when pollen or animal dander is the actual cause (J30.1, J30.81).
Mitigation
Consider querying the provider when the trigger is absent rather than inferring from season or patient history.
Related codes
Ancillary and co-coding
Codes commonly reported with the primary diagnosis on the same claim.
Z-code variants
Family history, personal history, or screening encounter codes related to this condition.
Differential codes
Alternative or commonly confused codes to consider when documentation suggests a different condition than the primary diagnosis.
Frequently asked questions
Use J30.9 only when the trigger is not documented. If pollen, seasonal, or animal dander is specified, assign J30.1, J30.2, or J30.81 instead.
References
Compiled from the following authoritative coding references. Last updated 2026-08-04.