J45.32
BillableMild persistent asthma with status asthmaticus
HCC Category Mapping
RxHCCHCC 229 — COPD and Chronic Bronchitis
0.000What This Code Means
Mild persistent asthma with status asthmaticus, which is a severe, life-threatening asthma attack that does not respond to standard treatment.
Coding Tips
- •Status asthmaticus is a medical emergency; ensure documentation clearly indicates this severe condition
- •This code indicates the most severe form of mild persistent asthma and typically requires intensive care management
Clinical Significance
Mild persistent asthma with status asthmaticus indicates a life-threatening, treatment-refractory asthma attack in a patient with baseline mild persistent disease. This paradoxical presentation — severe attack in mild disease — can occur with overwhelming trigger exposure and requires immediate emergency management including potential intubation.
Documentation Requirements
- ✓Provider documentation explicitly using the term 'status asthmaticus'
- ✓Baseline severity classified as mild persistent
- ✓Evidence of refractory bronchospasm despite aggressive treatment
- ✓ICU level of care documentation if applicable
- ✓Respiratory status monitoring: oxygen saturation, arterial blood gases, ventilatory parameters
- ✓Treatment documented: continuous nebulization, IV magnesium, IV steroids, possible intubation
Commonly Confused Codes
J45.31 — Mild persistent asthma with acute exacerbation: use when the attack responds to standard treatmentJ45.52 — Severe persistent asthma with status asthmaticus: use when baseline severity is severe persistentJ45.42 — Moderate persistent asthma with status asthmaticus: use when baseline severity is moderate persistentJ96.00 — Acute respiratory failure, unspecified: code additionally if respiratory failure develops
Code Hierarchy
└J45Asthma└J45.3Mild persistent asthma└J45.32Mild persistent asthma with status asthmaticus
└J45.32Mild persistent asthma with status asthmaticus