Who We Serve · Detox
Detox and Medical Withdrawal Management Billing Services
The Level of Care
What Makes Detox Billing Different
At a glance
- Acuity- and setting-specific H-codes, not one flat code
- Authorization granted a day or a few days at a time
- Every continued-stay request needs current withdrawal status
- Fewer billable days to absorb a coding mistake
Reference
Detox Billing Codes
What’s Included
Detox Billing Services From CodeMax
Eligibility and benefits verification
CodeMax verifies coverage and detox-specific benefits before admission, so a facility knows what’s covered before a patient starts withdrawal management, not after.
Coding by acuity and setting
Detox claims are coded to the specific H-code that matches both the medical intensity and the setting, rather than defaulting to whichever code was used last time.
Authorization and concurrent review tracking
Continued-stay authorization windows are tracked in real time so requests go out before the current authorization lapses, which matters more in detox than almost anywhere else given how short a stay typically runs.
Denial management
Denials tied to acuity mismatches, expired authorization, or documentation gaps are worked and appealed with the clinical context needed to reverse them.
Documentation review before submission
Withdrawal risk documentation, vitals, and physician orders are reviewed against the billed code before the claim goes out, catching a mismatch before it becomes a denial.
Step-Down
Detox to Residential: What Changes at the Transition
Why CodeMax
Precision Over Volume
FAQ
Detox Billing: Frequently Asked Questions
Detox uses acuity- and setting-specific H-codes (H0008-H0014) with authorization typically renewed daily or every few days. Residential uses per-diem codes (H0018/H0019) with less frequent, though still recurring, authorization review.
Acute codes (H0009, H0011, H0013) apply to higher-intensity medical supervision tied to more severe withdrawal risk. Sub-acute codes (H0008, H0010, H0012) apply to lower-intensity supervision. The distinction is clinical, not administrative, and needs to be reflected accurately in documentation, not just selected by default.
Yes, and they are billed differently because they are licensed differently. Medical withdrawal management uses physician and nursing oversight with medication; social (non-medical) detox relies on a supportive non-hospital setting without routine medical care, and most states license it separately. Coverage differs sharply too: some state Medicaid programs cover social detox, others fund it outside Medicaid entirely, and commercial coverage is the least consistent of any withdrawal management level. There is also no national crosswalk from ASAM withdrawal management levels to specific H-codes, so the correct code comes from your payer’s fee schedule rather than from the ASAM level alone.
Late submissions risk a gap in covered days, which can mean the facility absorbs the cost of care provided during the gap rather than the payer.
No. Revenue code 0116 is an accommodation code covering one private-room bed day in a detoxification bed, and revenue codes exist only on institutional claims, so it can appear on a UB-04 or 837I and never on a CMS-1500. It does not apply to ambulatory detox, which has no room-and-board component, and residential treatment normally uses the behavioral health accommodation series (1001 psychiatric, 1002 chemical dependency) instead. Some payers require an all-inclusive per diem and will deny a separately billed accommodation line, so the code should be confirmed against the contract.
Yes. Many facilities run detox as the entry point into a longer continuum that includes residential, PHP, or IOP. See the Residential page for how the step-down transition is billed.
Withdrawal management itself generally requires in-person medical supervision, but several surrounding pathways are open. Medicare’s behavioral health telehealth coverage is permanent, including the patient’s home as an originating site and audio-only delivery, and the in-person visit requirement is waived through December 31, 2027. On the medication side, the DEA’s general telemedicine prescribing flexibility for controlled substances currently runs through December 31, 2026, while the separate rule permitting buprenorphine initiation for opioid use disorder by audio-only telemedicine took effect December 31, 2025 and is permanent. What none of that settles is whether a given payer will pay an ambulatory withdrawal management per diem such as H0014 for a telehealth encounter, which is a contract-level question we confirm per payer. Accurate as of August 2026.
Typically withdrawal risk assessments, vitals and nursing notes, physician orders, and documentation supporting the specific acuity level billed, not just that detox occurred, but that the billed intensity was medically necessary.
