Pulmonology, coding reference.

99214 is the workhorse of primary care and most outpatient subspecialties. Use it when at least one of these is true: two or more chronic problems with progression, treatment changes, or side effects; one undiagnosed new problem with uncertain prognosis; one acute illness with systemic symptoms; or prescription drug management at any complexity. Prescription drug management on its own satisfies the moderate-risk element, which is why straightforward chronic disease follow-ups with a med adjustment routinely clear the 99214 bar. Time-based alternative is 30 to 39 minutes of total time on the date of the encounter. Pick the method that supports the strongest note: encounters with prescription changes are usually cleaner under MDM; encounters with extensive counseling or care coordination are usually cleaner under time.

Select this level when at least two of the three MDM elements meet high complexity, or when qualifying total time reaches 40 minutes. A diagnosis, medication, or high-risk decision alone does not establish the overall level. For Medicare prolonged services with this time-selected base code, the first G2212 unit requires 69 minutes. Payers recognizing CPT 99417 use different thresholds.

Baseline office spirometry. Use 94060 if you give bronchodilator and repeat.

Pre- and post-bronchodilator spirometry. The 'asthma confirmation' code.

Flow-volume loop testing for upper-airway obstruction evaluation.

In-office nebulized albuterol or saline induction.

CPAP initiation visit or follow-up management.

In-lab attended polysomnography. Use 95811 if titration also performed.

Home sleep apnea test (unattended).

Body plethysmography for TLC, RV, FRC measurement (full PFT).