---
title: 505 Activity Center
url: "https://completeguidetosdp.org/docs/505-activity-center/"
updated: "2026-07-20"
category: Traditional Service Codes
---

# 505 Activity Center

## Activity Center (505)

##### Service Code Definition:

**As part of rate reform, effective January 1, 2025, this service code will be transitioning to new service code and can no longer be used.**

##### Link to Directive/Additional Information:

**[D-2024 Rate Reform-008 Rate Reform Implementation for Adult Day Services.docx](https://www.dds.ca.gov/wp-content/uploads/2024/12/D-2024RateReform-008_RateReformImplementationForAdultDayServices.pdf)**