Patient was given 2000cGy in 10 fractions to the left breast…

Patient was given 2000cGy in 10 fractions to the left breast using IMRT concurrently with 3000cGy in 5 fractions to the left shoulder using IMRT, followed by 2000cGy in 10 fractions to the left breast using external beam, then ending with 1000cGy in 10 fractions to the left shoulder using IMRT. What is the code for Number of Phases of Radiation?