Pulmonology · CMS status A
94640
Airway inhalation treatment
Pressurized or non-pressurized inhalation treatment for acute airway obstruction or for sputum induction.
Published by RVUDoc. Numeric data: CMS RVU26C, effective 2026-07-01. Page updated 2026-09-23. Calculation limits and editorial policy.
Work RVU
0.00
National non-QP estimate
$8.68
National GPCI · non-facility · CF $33.4009
Fee-schedule estimate before claim adjustments. Coverage, setting and payer rules still apply.
RVU anatomyWork 0.00 + Practice 0.25 + Malpractice 0.01 = 0.26 total
Work (your effort)Practice expenseMalpractice
Billing guidance for 94640 is locked
- When to use it: the exact clinical situations that support billing 94640
- Documentation checklist: the 2 elements your note needs before submitting
- Common pitfalls: the 2 mistakes that get 94640 downcoded or denied
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Common modifiers
25
Common ICD-10 pairings
J45.901J44.1
Related codes
These include alternative services and possible add-ons. Listing codes together does not establish that they can be billed together; check the applicable edits and payer policy.
See what 94640 adds to your year
Add it to the wRVU calculator with your own volume, or paste a note and let the chart audit check your coding.
Educational reference, not billing or legal advice. Verify against your payer contracts and your compliance team before submission.