Pulmonology practices combine clinic E/M, pulmonary function testing (PFT), sleep medicine, bronchoscopy, and hospital consults. Each lane has its own coding, authorization, and documentation traps. This guide walks through the claim types that most often stall revenue and how to keep pulmonology billing aligned with clinical reality.
Pulmonary function testing and diagnostics
PFT coding depends on which components were performed—spirometry, lung volumes, diffusion capacity—and whether interpretation is billed separately. Incomplete orders, missing technician notes, or billing a full panel when only spirometry was done are frequent payer challenges. Pair diagnosis codes that establish medical necessity for the test ordered, not a generic respiratory code list.
- Match CPT components to the actual tests completed
- Document indication, findings, and interpreting clinician
- Watch frequency limits on repeat PFTs within the same plan year
- Confirm whether technical and professional components split by site
Sleep study billing essentials
Home sleep apnea testing and in-lab polysomnography follow different CPT paths and prior-auth patterns. Many plans require failed or contraindicated home testing before approving a facility study. Score sheets, technician attestation, and physician interpretation must be in the chart before the claim drops. Unattended study codes billed with incomplete channel documentation invite denials.
Bronchoscopy and hospital-based procedures
Bronchoscopy coding hinges on purpose—diagnostic inspection, lavage, biopsy, navigation—and on concurrent E/M rules. Global surgical packages and teaching-physician requirements apply in many hospital settings. Coordinate with facility billing so modifiers and diagnosis codes do not conflict.
Chronic respiratory disease management
COPD, asthma, and interstitial disease management generate recurring E/M and inhaler education visits. Capture inhaler technique training and oxygen assessments when separately billable and documented. Avoid stacking same-day services that payers consider inclusive unless modifiers and notes clearly support distinct work.
Connecting pulmonology claims to RCM health
Pulmonology revenue improves when authorization, coding, and denial teams share one worklist for sleep and procedure queues. Track first-pass yield by service line—PFT, sleep, bronchoscopy—not only overall AR. For end-to-end process design, see MedClear’s revenue cycle management services; for coding depth, our medical coding services team supports specialty documentation reviews.