J30.9 — Allergic rhinitis, unspecified

J30.9

ICD-10 Chapter 10: Respiratory System — illustrative image — Chapter 10: Diseases of the respiratory system (J00–J99) — illustrative image

What this code means

Allergic rhinitis is inflammation of the nose lining from an allergy, causing sneezing, itching and congestion.

Also called: allergic rhinitis, hay fever.

When this code is used

Used for allergic rhinitis when the trigger is not specified.

Where it sits in ICD-10-CM

Code J30.9 belongs to Chapter 10: Diseases of the respiratory system, which covers codes J00–J99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Frequently asked questions

What is ICD-10-CM code J30.9?

J30.9 is the ICD-10-CM diagnosis code for “Allergic rhinitis, unspecified”. Allergic rhinitis is inflammation of the nose lining from an allergy, causing sneezing, itching and congestion.

When is code J30.9 used?

Used for allergic rhinitis when the trigger is not specified. It belongs to Chapter 10 of ICD-10-CM (Diseases of the respiratory system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.