ICD-10 Code J43.1 – Panlobular emphysema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J43.1 – Panlobular emphysema
What it is
Panlobular emphysema is a form of emphysema that involves destruction and enlargement of air spaces throughout the entire acinus. You use this code when documentation specifically identifies panlobular emphysema.
Clinical signs
Clinical features vary; refer to documentation. Common findings in emphysema include chronic dyspnea, reduced breath sounds, and hyperinflation on imaging or exam.
When to use this code
Use J43.1 when the provider documents panlobular emphysema, including panacinar emphysema as described in the record. Code it for confirmed diagnoses in outpatient, inpatient, or problem-list documentation when the type is specified.
If the note only says emphysema without type, check documentation before assigning this code. Use the most specific COPD or emphysema code supported by the record.
Do not use for
Do not use this code for other emphysema types, such as centrilobular or paraseptal emphysema, unless the record specifically identifies panlobular disease. Check documentation if the type is unclear.
Coding tip
Assign J43.1 only when the provider names panlobular emphysema; otherwise, query or code the documented emphysema type.