"payment"
PHI stands for protected health information.
PHI is any health information that can be identified as being from someone specifically. It may include information received by a healthcare provider, or others related; any information about physical health or mental health of a patient, whether from the past, present, or future; also any information related to any payment for health care. PHI may be considered in any form such as verbal, computerised or written.
The permissions for the use of this information are "for treatment, payment, and healthcare" procedures.