TempoLife › Diagnosis code lookup › j20-9
J20.9 — Acute bronchitis
A short-lived infection of the airways below the throat, with a cough.
General information only — not a diagnosis or medical advice. Only a doctor can say what this code means for you. Seek medical help for anything urgent or worrying.
What it generally refers to
Acute bronchitis is inflammation of the larger airways, usually after a viral infection, with a cough that can linger for a couple of weeks and sometimes brings up mucus. It generally settles on its own; antibiotics rarely help because it is usually viral.
Reading it in context
Codes like J20.9 are written for records and billing, so they are short by design. The same code can sit behind very different real situations, and the plan that matters — tests, treatment, follow-up — lives in the rest of your notes and in what your clinician tells you, not in the code alone.
Other common codes
J06.9 — Common cold / upper respiratory infection
A general code for an infection of the nose, throat or sinuses — usually a common cold.
J45.9 — Asthma (unspecified)
A long-term airway condition causing wheeze, cough and breathlessness.
J02.9 — Sore throat (acute pharyngitis)
Inflammation of the throat causing pain, especially on swallowing.
J03.9 — Tonsillitis (acute)
Inflamed tonsils, with a sore throat and often fever.
J11.1 — Influenza (flu)
The flu, causing fever, aches and tiredness, with the virus not identified.
Source: WHO International Classification of Diseases, 10th revision (ICD-10). Description paraphrased into plain language. · checked 2026-09-04
Frequently asked questions
What does ICD-10 code J20.9 mean?
Acute bronchitis is inflammation of the larger airways, usually after a viral infection, with a cough that can linger for a couple of weeks and sometimes brings up mucus. It generally settles on its own; antibiotics rarely help because it is usually viral.
Is J20.9 serious?
The code itself does not say. It names a category, not a severity. What it means for you depends on your own situation, which only your doctor can judge.
What should I do if I see this on my note?
Read it as a label, not the whole story, and ask the clinician who wrote it if anything is unclear. For symptoms that worry you, contact a doctor or pharmacist.
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