C1601 is the HCPCS Level II device code (often searched as CPT C1601) for: Endoscope, single-use (i.e. disposable), pulmonary, imaging/illumination device (insertable). No public Medicare dataset shows who bills C1601: this class of device code never appears as its own paid line in Medicare's public claims files.
C1601 is a transitional pass-through device (OPPS status indicator H) on device pass-through APC 2042: hospitals are paid separately for it, at amounts set from hospital cost data rather than a single national rate printed in Addendum B. Pass-through status is temporary by design; when it lapses, the code becomes packaged. In ambulatory surgical centers it is an OPPS pass-through device: paid separately, contractor-priced.
No public CMS dataset carries C1601 utilization, at any grain. It is paid separately to hospitals as a pass-through device, but those payments live in facility claims that CMS publishes only at APC grain, so the code still never appears as its own line in any public file. The Medicare-visible side is the procedure, not the device.
Per-claim C-code detail exists only in restricted CMS research files that can't be used in a commercial product. So any site offering a "C1601 top billers" list is showing you something other than real data. We'd rather show you what actually exists: the procedures below are where this device shows up in Medicare's public data, and each one has a real who-bills answer.
New to this code class? Read how C-codes are reimbursed.
The device is invisible in the claims data. The procedures it's used in are not: each row below is public 2024 Medicare data.
| Code | Procedure (CMS description) | Providers (2024) | Services | |
|---|---|---|---|---|
| 31624 | Irrigation and suction of lung airways to obtain cells… | 2,323 | 63,645 | |
| 31628 | Biopsy of lobe of lung using an endoscope, 1 lobe | 1,079 | 32,767 | |
| 31627 | Computer-assisted image-guided navigation of lung airways… | 931 | 26,730 | |
| 31629 | Needle biopsy of windpipe cartilage, airway, and/or lung… | 867 | 24,498 | |
| 31645 | Aspiration of initial secretion of lung airway using an… | 742 | 23,040 | |
| 31654 | Exam of lung airways with diagnostic or therapeutic… | 736 | 22,236 | |
| 31652 | Exam of lung airways and sampling of lymph nodes using an… | 768 | 16,925 | |
| 31653 | Exam of lung airways and sampling of lymph nodes using an… | 545 | 13,900 | |
| 31622 | Diagnostic exam of lung airway using an endoscope | 374 | 9,253 | |
| 31615 | Exam of windpipe and lung airways through permanent… | 74 | 3,260 | |
| 31623 | Exam of lung airways using an endoscope | 121 | 3,213 | |
| 31632 | Biopsy of lobe of lung using an endoscope, each additional… | 122 | 2,897 |
+ 21 more paired procedures in CMS's device-pairing data.
Device makers in this space disclose payments to clinicians under the Sunshine Act: state-by-state industry payments →
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