HCPCS

H0011: Acute Detox (Residential) Billing Code

HCPCS H0011 is acute detoxification in a residential addiction program. Pairing with revenue code 1002 and what payers look for in the record.

Last reviewed October 2026

Official descriptor

H0011: Alcohol and/or drug services; acute detoxification (residential addiction program inpatient)

CMS HCPCS file, October 2026

When facilities use H0011

H0011 is the acute level of residential detoxification. Payers that use it expect the record to show why acute withdrawal management was needed rather than the sub-acute level billed with H0010.

CMS lists it with coverage code I, not payable by Medicare. Commercial payers and Medicaid programs set their own rules for it.

Pairing examples

Source	How H0011 is used
Point32Health	Revenue code 1002 + H0011 for acute treatment services; 1002 + H0011-HH for enhanced acute treatment services; one unit per day; H0011-UD for ASAM Level 3.7 on Rhode Island Medicaid claims
Evernorth Behavioral Health	Inpatient detox on room and board code 0126, no HCPCS listed

What the record should show

Withdrawal severity scores at admission and through the stay
Vitals and medication orders that reflect acute management
Physician or nurse assessments each day
Why a sub-acute or outpatient level was not safe

Without that, expect CO-50 or a downgrade to the sub-acute level (CO-150).

Questions

Is H0011 billed per day?

The CMS descriptor does not say per diem, but payer guides set units by day. Point32Health, for example, bills one unit per day.

Can H0011 carry a modifier?

Some payers require one. Point32Health uses HH for co-occurring enhanced acute treatment and HV for certain youth services.

Revenue code guide Denial code lookup

Sources

Educational summary, not billing advice. Your contract and the payer's current guide decide how to bill.