| Code | Description |
| 52 | Modifier identifies when a complete intake is not performed, i.e., update or addendum to previous intake. |
| 53 | Modifier identifies when an intake has not been completed during a scheduled session. |
| H9 | Modifier in combination with CPT code 99075 to indicate medical testimony provided as part of an involuntary treatment service. |
| HA | Child/Adolescent program. This modifier is to identify delivery of services by Wraparound team members to individuals enrolled in the Fidelity Wraparound Pilot programs (2SHB1088). |
| HE | Mental Health Program |
| HH | Modifier identifies integrated substance abuse/mental health program designated in ESB 5763. |
| HK | Modifier to identify specialized mental health program for high-risk populations |
| HW | Funded by state mental health agency |
| UA | WA State Medicaid Plan defined modifier to describe brief intervention treatment when added to the identified CPT/HCPCS codes. |
| UB | WA state MHD defined modifier in combination with H0046 to describe request for mental health services. |
| UC | WA State MHD defined to indicate provision of service by multiple staff as needed for safety purposes. This modifier is used in combination with H2011, H0036, or S9484. |
| UD | WA State Mental Health Division defined modifier to identify delivery of service by WA-PACT team members to individuals enrolled in the WA-PACT program. |
