ICD-10 Code J84.117 – Desquamative Interstitial Pneumonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J84.117 – Desquamative interstitial pneumonia
What it is
J84.117 identifies desquamative interstitial pneumonia, an interstitial lung disease marked by inflammation in the lung’s air spaces. Use it when the diagnosis is documented and you need the specific ICD-10-CM code.
Clinical signs
Typical findings include progressive shortness of breath and cough, with diffuse interstitial changes on imaging. Clinical features vary; refer to documentation for the confirmed diagnosis and supporting findings.
When to use this code
Use J84.117 when the provider documents desquamative interstitial pneumonia, including confirmed or established cases in outpatient or inpatient records. It is appropriate when the condition is the reason for evaluation, monitoring, or follow-up. If the record only says “interstitial lung disease,” check documentation for a more specific diagnosis.
Do not use for
Do not use this code for unspecified interstitial lung disease or other interstitial pneumonias without documentation of desquamative interstitial pneumonia. Check documentation if the wording is vague or if another pulmonary diagnosis is clearly stated.
Coding tip
Code J84.117 only when the provider names desquamative interstitial pneumonia explicitly; otherwise, query or code the documented interstitial lung disease type.