Wiki Billing 77331

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I have a patient that is a breast IMRT plan 77301 with 3D and bill the Diodes 73331 they are denying. This procedure or procedure/modifier combination is not compatible with another procedure or procedure/modifier combination provided on the same day according to the National Correct Coding Initiative or workers compensation state regulations/ fee schedule requirements. Can you please assist. Billed for DOS G6015, 73331 x2, G6002
 
Did you mean 77331, as in your title? If so, it looks like it's included in 77301:

IMRT planning code 77301. Effective January 1, 2017, CMS issued updated guidance on the CPT codes that may be reported with 77301 IMRT Treatment Planning for developing an IMRT treatment plan. Payment for the services identified by CPT codes 77014, 77280, 77285, 77290, 77295, 77306, 77307, 77321, 77331, and 77370 are included in the payment for CPT code 77301 (IMRT planning). These codes should not be reported in addition to CPT code 77301 when provided prior to or as part of the development of the IMRT plan. CPT code 77280 Simulation aided field setting should not be reported for verification of the treatment field during the entire course of IMRT. CPT Code 77370 Special Medical Radiation Physics Consultation cannot be used for a QA or development of the treatment plan, including image fusion. There may be certain clinical scenarios where the physician will need a special physics consult AFTER the development of the plan.

77331 Special Dosimetry Code: 77331 is used to document a dose at given point within a treatment field using special radiation equipment. The following rules apply:
1. If medically necessary, a measurement of a specific point is only reported once (per gantry angle) unless there are changes in the treatment affecting the measured point
2. Routine dosimetry measurements on all patients or fields are not allowed and are considered not medically necessary
3. The code may be used for unique considerations:
a. Measuring a dose at abutting or overlapping fields
b. Calibrating an electron mold
c. Confirming dose in a uniquely small field
d. Selected brachytherapy procedures
e. Documentation of dose under bolus
f. Measurement of critical organ dose such as eye (lens) when medically necessary
This measurement is intended to verify dose that is not part of the normal calculation of a treatment planning system or a treatment device calibration. It is not intended as a routine check or quality assurance for IMRT or other treatment plans. The use of CPT® 77331 requires a specific physician order and evidence that the result was reviewed and signed by the physician. The ordering of more than six measurements will require specific documentation of an unusual medical necessity in a given case.

Full article here.
 
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