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BlogIOP/PHP

Everything You Need to Know About 837i

A guide for behavioral health clinics entering the world of IOP/PHP institutional billing. When behavioral health clinics first begin exploring the idea of expanding into higher-acuity services—programs like Intensive Outpatient (IOP) or Partial Hospitalization (PHP)—the conversations usually center around patient…
Allister Liberato
February 2, 2026
BlogIOP/PHP

Never Dread an IOP/PHP Audit Again: Documentation That Stands Up

For behavioral health providers running Intensive Outpatient (IOP) and Partial Hospitalization Programs (PHP), the word “audit” can trigger immediate anxiety. Even high-performing programs—those delivering excellent care and strong outcomes—often worry whether their documentation will stand up to payer scrutiny, state…
Perrill
January 28, 2026
BlogIOP/PHP

What Is a Partial Hospitalization Program?

What Is a Partial Hospitalization Program? A partial hospitalization program (PHP) is designed for people who need more structure than standard outpatient therapy, but who don't require 24-hour inpatient care. Behavioral health practices use PHPs to stabilize symptoms, prevent hospitalization,…
Allister Liberato
January 12, 2026
BillingBlogClinical Documentation

90791 CPT Code

Diagnostic Evaluation: Using CPT Code 90791 CPT codes create a common language across behavioral health billing, clinical documentation, and payer communication. Each code represents a specific type of clinical service, making it possible for anyone in healthcare to understand the…
Allister Liberato
December 1, 2025