94013 Meas lung vol thru 2 yrs
Also known as: infant lung volume measurement, pediatric plethysmography, infant total lung capacity
Measurement of lung volumes through plethysmography or other methods in infants and children up to 2 years old to assess total lung capacity.
In Plain Language
baby lung capacity measurement; infant air space test
Clinical Context
Used to assess restrictive lung disease, hyperinflation, or air trapping in young children with chronic lung disease or respiratory compromise.
RVU Breakdown
| Work RVU | 0.40 |
| Total RVU | 0.40 |
Est. Medicare Payment
National estimate based on 2026 CMS PFS Conversion Factor ($33.40). Actual payment varies by locality (GPCI adjustment).
Billing & Documentation
Medicine section codes cover a wide range of non-surgical services. Documentation should include the clinical indication, procedure details, interpretation (if applicable), and any patient-specific findings.
How This Code Compares
With a work RVU of 0.40, this code ranks in the 25th percentile among Medicine codes — 1.9x below the median (0.78). The highest wRVU in this category is 23.92.
Specialties
Frequently Asked Questions
What is CPT code 94013?
CPT 94013 (Meas lung vol thru 2 yrs) is a Medicine code. Measurement of lung volumes through plethysmography or other methods in infants and children up to 2 years old to assess total lung capacity.
Who uses CPT code 94013?
CPT 94013 is used by Pediatrics, Pulmonology, Neonatology. Used to assess restrictive lung disease, hyperinflation, or air trapping in young children with chronic lung disease or respiratory compromise.
When is CPT 94013 used?
Used to assess restrictive lung disease, hyperinflation, or air trapping in young children with chronic lung disease or respiratory compromise.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.