2007 ICD-9-CM Procedure 99.73 Therapeutic erythrocytapheresis 99.73 is a specific code that can be used to specify a procedure 99.73 contains 1 index entry View the full Volume 3 99.* hierarchy 99.73 also known as: Therapeutic erythropheresis Index entries containing 99.73: Erythrocytapheresis, therapeutic 99.73