ICD Code J84.170

ICD code J84.170 is interstitial lung disease with a progressive fibrotic phenotype that occurs as a result of other underlying diseases classified elsewhere.

1. Evidence of interstitial lung disease (ILD) on high-resolution computed tomography (HRCT) or lung biopsy

2. Progressive worsening of respiratory symptoms (such as increasing dyspnea or cough)

3. Physiological evidence of disease progression (decline in forced vital capacity [FVC] or diffusing capacity for carbon monoxide [DLCO])

4. Radiological evidence of increasing fibrosis on serial imaging

5. Underlying systemic or connective tissue disease, or other disease classified elsewhere, associated with ILD

6. Exclusion of alternative causes for pulmonary symptoms and radiological findings

Relevant CPT codes that may be used to treat ICD code J84.170 include:

- 94010 (Spirometry, including graphic record, total and timed vital capacity, expiratory flow rate measurement(s), with or without maximal voluntary ventilation)

- 94726 (Plethysmography for determination of lung volumes and, when performed, airway resistance)

- 94640 (Pressurized or nonpressurized inhalation treatment for acute airway obstruction or for sputum induction for diagnostic purposes)

- 94664 (Demonstration and/or evaluation of patient utilization of an aerosol generator, nebulizer, metered dose inhaler or IPPB device)

- 32408 (Core needle biopsy, lung or mediastinum, percutaneous, including imaging guidance)

- 31622 (Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; diagnostic, with or without cell washing)

- 31625 (Bronchoscopy with bronchial or endobronchial biopsy(s))

- 31628 (Bronchoscopy with transbronchial lung biopsy(s))

- 88108 (Cytopathology, concentration technique, smears and interpretation)

- 88305 (Level IV surgical pathology, gross and microscopic examination)

CPT code selection should be based on the specific services rendered for patients with ICD code J84.170.

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