CPT 94729: Diffusing capacity (DLCO)
- Code
- 94729
- Description
- Diffusing capacity (DLCO)
- Coding system
- CPT
- Work RVU (wRVU)
- 0.19
- National Medicare allowable (non-facility)
- $63.46
- National Medicare allowable (facility)
- $63.46
- Global days
- ZZZ
- Medically Unlikely Edits (MUE)
- Max units per day: 1 (MAI 3) — Nature of Service/Procedure
- First-pass claim acceptance
- 91%
Coding insight
CPT 94729 (“Diffusing capacity (DLCO)”) is most commonly billed when the documented service maps to its standard descriptor. At 0.19 work RVUs the national Medicare allowable is $63.46 non-facility and $63.46 facility. NCCI Medically Unlikely Edits cap reporting at 1 unit(s) per beneficiary per day (MAI 3). Recent submissions through ICD2CPT show a 91% first-pass payer acceptance rate.
Live wRVU and Medicare allowable are sourced from CMS Physician Fee Schedule release RVU26B. NCCI MUE values are sourced from the CMS National Correct Coding Initiative.
Source: ICD2CPT — verified against AMA CPT, CMS Physician Fee Schedule (RVU26B), CMS Medicare Coverage Database, and CMS NCCI edits.