Revenue code
Revenue Code 0905: Intensive Outpatient, Psychiatric
Revenue code 0905 is psychiatric intensive outpatient services. Pairing with S9480, units and the denials mental health IOP programs see.
Last reviewed October 2026
Meaning
0905: Behavioral health treatments and services: intensive outpatient services, psychiatric
When facilities use 0905
0905 is the intensive outpatient code for psychiatric care in the 090X behavioral health range. Mental health and eating disorder IOPs use it. Substance use IOPs use 0906.
Dual diagnosis IOPs may bill 0905 or 0906 at Evernorth, depending on the primary diagnosis. This page focuses on commercial facility billing.
Pairing and units
| Payer guide | HCPCS | Units |
|---|---|---|
| Evernorth Behavioral Health | S9480 | Per day |
| BCBS of Mississippi | S9480 | 1 unit per date of service; type of bill 013X or 089X |
Common denials and fixes
- No HCPCS on the line. CO-16 with M51. Add S9480.
- H0015 billed with 0905. A SUD code on a psychiatric line. Correct to 0906 or S9480 as appropriate.
- IOP hours not documented. CO-150. Record attendance and hours each day.
Questions
What HCPCS goes with revenue code 0905?
Published guides from Evernorth and BCBS of Mississippi pair 0905 with S9480.
Is 0905 billed per day?
Payer guides call for one unit per date of service.
Sources
- Noridian Healthcare Solutions (Medicare contractor), Revenue codes (opens in a new tab)
- Evernorth Behavioral Health, Authorization and Billing Resource (PDF) (opens in a new tab)
- Blue Cross & Blue Shield of Mississippi, Behavioral Health Coding Policy (opens in a new tab)
Educational summary, not billing advice. Your contract and the payer's current guide decide how to bill.