ICD-10 Code J45.2 – Mild intermittent asthma (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J45.2 – Mild intermittent asthma
What it is
J45.2 identifies mild intermittent asthma, a chronic airway disorder with brief, occasional symptoms. It is used when asthma is present but episodes are infrequent and overall impairment is limited.
Clinical signs
Typical findings include intermittent wheezing, cough, chest tightness, or shortness of breath. Clinical features vary; refer to documentation for pattern, frequency, and whether symptoms are absent between episodes.
When to use this code
Use J45.2 when the provider documents mild intermittent asthma or clearly describes an intermittent asthma pattern. It fits cases with occasional symptoms and no evidence of persistent disease in the note. Check documentation if severity is not stated.
Do not use for
Do not use this code for asthma with persistent, moderate, or severe features, or when the record only says “history of asthma.” If the type is unclear, check documentation.
Coding tip
Code from the provider’s stated asthma severity, and do not infer mild intermittent status from limited symptom detail alone.