Awareness : OBC Tips

Admissions Involving Chemotherapy, Immunotherapy and Radiation Therapy

If a patient admission is solely for the administration of chemotherapy, immunotherapy or radiation assign code Z51.0, Encounter for the antineoplastic radiation therapy, or Z51.11, Encounter for antineoplastic chemotherapy, or Z51.12, Encounter for antineoplastic immunotherapy as the first-listed principle diagnosis. If a patient receives more than one of these therapies during the same admission more than one of these codes may be assigned, in any sequence. The malignancy for which the therapy is being administered should be assigned as a secondary diagnosis.

When a patient is admitted for the purpose of radiotherapy, immunotherapy, or chemotherapy and develops complications such as uncontrolled nauseas and vomiting or dehydration, the principle or first-listed diagnosis is Z51.0, Encounter for antineoplastic radiation therapy, or Z51.11, Encounter for antineoplastic chemotherapy, or Z51.12, Encounter for antineoplastic immunotherapy followed by any codes for the complications.