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Specialty billing Pulmonology
Pulmonology billing fails at three predictable points: unsigned PFT interpretation reports, sleep-study date-of-service errors, and bronchoscopy bundling edits that strip reimbursement without warning. Our pulmonology billing targets all three, with AAPC/CPC Certified Coders and Billers who know sleep-lab billing, LCD-aware claim scrubbing and a check that the signed interpretation is in the chart before the claim goes out.
Pulmonology coding focus
The Root Cause
A common root cause of pulmonology denials is a claim submitted before the physician interpretation was signed. The professional component (modifier 26) pays for the interpretation and report, so when it goes out before that documentation exists, it's exposed to denial.
This is not a coding mistake in the traditional sense. It's a workflow timing problem. Practices that batch-bill on a fixed schedule, rather than gating claims on interpretation-report status, see the same denial pattern month after month: technical component paid, professional component denied, and an accounts receivable bucket that never clears.
Our rule is simple: PFT and sleep-study professional claims are held until the signed interpretation report is in the chart, instead of being fixed on appeal.
The 94010 vs 94060 Trap
Choosing between CPT 94010 and 94060 is a common spirometry coding error, and it's usually a documentation gap rather than a coder error.
| Code | Description | When Billable |
|---|---|---|
| 94010 | Spirometry, baseline only | No bronchodilator administered or documented response |
| 94060 | Spirometry, pre- and post-bronchodilator | Bronchodilator given AND a second (post) maneuver documented with results |
Beyond Spirometry
PFT billing beyond basic spirometry covers diffusion capacity (DLCO) and lung volumes, coded under CPT. These codes split into a technical component (equipment, technician time) and a professional component (physician interpretation, billed with modifier 26), and both must be tracked separately in the practice management system.
The professional component of a PFT pays for the physician's interpretation and report, so a signed report should be in the chart before that claim goes out. We check for it before submission, not after the first denial arrives.
Under the CY 2026 Medicare Physician Fee Schedule final rule, CMS applied a -2.5% efficiency adjustment to the work RVUs of most non-time-based services, such as test interpretations and bronchoscopy, from January 1, 2026. We check that your fee schedule uses the 2026 rates, so short-paid interpretations and bronchoscopies show up in your variance reports.
Source: CMS, CY 2026 PFS final rule fact sheet (October 31, 2025).
Sleep Lab Billing
Sleep study date of service billing rules trip up even experienced billing staff because polysomnography (CPT 95810) frequently spans midnight. Which date goes on the claim depends on your Medicare contractor and each payer, and getting it wrong can create a mismatch with the order or authorization on file.
A sleep-lab tech documents a study that begins at 9:45 PM and ends at 5:30 AM. If the DOS on the claim doesn't follow the payer's rule, the claim can be rejected or denied. We check the DOS convention for each payer on sleep-lab claims.
Split-night studies (diagnostic-to-CPAP-titration in one session) require distinct coding logic from a standard full-night study, and home sleep apnea tests (HSAT) follow a different coverage and coding path entirely than in-lab polysomnography. Our coders route each study type to the right coding path before submission.
End-to-End Workflow
Book a free consultation and we'll talk through where interpretation timing may be costing you revenue.
Book a Free ConsultationFrom your EHR or charge sheets.
Claim held until signed interpretation confirmed.
Bronchoscopy and procedure-pair edits checked pre-submission.
Sleep studies and select PFTs.
Clean claims are filed after coding and scrubbing.
Each denial traced to its root cause.
Trust & Compliance
MedixCode is HIPAA compliant, and our staff are HIPAA-trained. Sleep-lab billing keeps the professional and technical components separate, so facility and physician billing don't get mixed into one claim stream.
Clear Pricing
Billing is priced as a percentage of net collections. There's no setup fee or monthly minimum, and your written rate follows once we know your PFT and sleep-study volume. See how pricing works
Onboarding
Switching billing partners is a worry for most practices, especially sleep labs with a full overnight schedule. Once we've seen your systems, data access and payer list, we agree a start date with you. The changeover is planned around your sleep-lab calendar, with the aim of keeping claims moving during the switch.
FAQ
Answers on spirometry codes, sleep-study dates, prior authorization, PC/TC routing, LCDs and onboarding. More questions? See our FAQ
CPT 94010 is spirometry without a bronchodilator response test. CPT 94060 is spirometry before and after a bronchodilator, so the chart must show the bronchodilator was given and a second spirometry was recorded. Billing 94060 without documented post-bronchodilator results is a common error and a compliance risk.
Follow your Medicare contractor's and each payer's instruction. Many use the date the study began. We check the convention for each payer so the claim matches the order and authorization on file.
We submit PA requests with the ordering physician's clinical documentation, track payer turnaround times and flag studies at risk of a scheduling delay before the appointment date, not after a denial.
No. It depends on documentation quality and payer mix. Our interpretation check and NCCI scrubbing before submission are built to raise it, and we'll look at your own PFT and sleep claims with you in the consultation.
Yes. We route professional (modifier 26) and technical components separately, which matters for sleep labs that bill both the facility and physician side of a study.
We check PFT claims against the applicable Medicare Local Coverage Determination for medical necessity documentation, ordering diagnosis and interpretation requirements before submission.
Either works. We work inside your EHR or can accept charge sheets.
It depends on your EHR/PM setup and the payers you bill. We review those first, then agree a timeline with you.
Free Consultation ยท No Obligation
Request a free pulmonology billing consultation. We'll review your PFT interpretation workflow, sleep-study DOS compliance, and bronchoscopy NCCI edits before you commit to anything.
Prefer email? Send your sleep-lab or PFT billing questions to info@medixcode.com.
