Substance use & withdrawal management billing
Full revenue cycle management for withdrawal management and SUD programs verification, authorization, ASAM level-of-care coding, denial appeals, and AR follow-up. Run by a team that works inside behavioral health billing, not around it.
What this is
Payers scrutinize medical necessity on nearly every admission, authorization windows run short, and one missed continued-stay review can turn a five-day inpatient detox into a full write-off. Your clinical team already carries the weight of stabilizing patients through alcohol, opioid, and benzodiazepine withdrawal. The billing should not add to it.
Freestanding and hospital-based detox units, plus residential centers running a withdrawal management track billed on per diem UB-04 claims.
Outpatient detox and intensive outpatient programs managing withdrawal on a day-treatment basis with codes like H0014 and H0015.
Office-based buprenorphine practices, naltrexone administration, and opioid treatment programs billing the Medicare OTP benefit.
Why detox is different
Most medical billing follows a clean fee-for-service pattern. Detox rarely does. Withdrawal management is billed against the ASAM Criteria and largely paid on a per diem basis, so facility charges land on a UB-04 while the physician's E/M work is billed separately on a CMS-1500. Matching each to the right authorization is where revenue is won or lost.
Two rules make it harder than almost any other specialty. 42 CFR Part 2 holds SUD records to a stricter confidentiality standard than HIPAA, which shapes how you release records for claims and appeals the 2024 SAMHSA rule aligned parts of it closer to HIPAA, but consent still governs disclosure. And the Mental Health Parity and Addiction Equity Act requires parity with medical benefits, yet many payers still apply tighter concurrent review. A biller who knows parity can push those denials back.
Exact code selection depends on setting (hospital vs. residential) and acuity (acute vs. sub-acute), and on payer and state rules.
The recurring problems
Programs that call us tend to be losing money to the same handful of issues. These are the ones that cost the most.
Payers approve two or three inpatient days at a time and require concurrent review to extend. Miss a deadline and the remaining days become non-covered.
You admit at 3.7-WM on CIWA-Ar or COWS scores; the reviewer argues for a lower level. Without solid ASAM documentation, the claim gets downgraded.
Many detox facilities are out of network, which means single case agreements, negotiated rates, and appeals a network provider never has to file.
ICD-10 wants use vs. abuse vs. dependence, and withdrawal with or without complications. Defaulting to unspecified F10-F19 codes invites denials.
Per diem claims need a daily note tied to withdrawal severity. When the chart doesn't support the day billed, the claim fails on audit.
Confidentiality slows record production, appeals stall, and filing deadlines pass while the work sits waiting on releases.
How our detox billing works
Each stage feeds the next, with checkpoints designed around the way withdrawal management payers actually behave.
We verify behavioral health benefits, confirm detox as a covered level of care, and check network status before admission. For out-of-network cases we flag single case agreements early, then manage concurrent and continued-stay reviews so authorizations never lapse mid-stay.
We work fluently in the HCPCS detox family H0008 through H0015 with the right room-and-board revenue codes in the 011X series, full F10-F19 diagnosis specificity, and modifiers like HF and HG where they belong.
Claims go out on the correct form UB-04 for facility per diems, CMS-1500 for professional services — after a scrub that checks code-to-authorization matches, revenue-code accuracy, and payer-specific edits.
We read the remittance and build the appeal around the real reason. Medical necessity denials get answered with ASAM-based documentation and parity arguments; level-of-care downgrades get challenged with the withdrawal data that justified admission.
We post against the per diem rate, the single case agreement, or the contracted amount, and reconcile every posting. Underpayments — common in out-of-network detox — get routed straight back into follow-up.
Aging claims get worked on a schedule, prioritized by dollar value and timely-filing risk. Clearing a past-90-day backlog is usually the first measurable result of switching to us.
Coding & compliance
Detox coding lives mostly in HCPCS Level II rather than standard CPT, and the diagnoses reward specificity. Alcohol dependence with withdrawal, opioid dependence with withdrawal, and their complicated variants each carry distinct codes and payers reimburse the specific ones.
For programs offering medications for opioid use disorder, we handle buprenorphine, naltrexone including the extended-release injectable J2315, the Medicare OTP bundled weekly payments effective since 2020, and screening and brief intervention with 99408 / 99409.
Billing and compliance can't be separated here. We work within Part 2 on every disclosure and advise on the documentation your claims depend on: daily notes tied to withdrawal severity, physician certification of medical necessity, and treatment plans mapped to the six ASAM dimensions.
Why outsource it
Running detox billing in-house means retaining people who understand H-codes, ASAM levels, Part 2, parity, and out-of-network appeals. Handing it to a team that already lives in this specialty tends to produce a few concrete results.
Why providers choose Mental Health Billing
We know how detox differs from a hospital medicine claim, why a 3.7-WM admission needs different support than a 2.1 program, and how to answer a parity-based denial. Our detox billing services in the USA are built around the payers, codes, and regulations your program actually faces.
Substance use and behavioral health billing specifically the code families, level-of-care rules, and appeal strategies that general billers rarely handle.
From OTP payment changes to Part 2 updates and parity enforcement, we keep pace with the rules that decide whether a claim pays.
We treat underpaid and denied claims as recoverable, not lost reconciling payments and working appeals until they resolve.
Who we work with
Questions providers ask
Detox is largely billed by level of care under the ASAM Criteria and often paid per diem, with facility charges on a UB-04 and physician services on a CMS-1500. It leans on HCPCS H-codes rather than standard CPT, and it depends on tight authorization management because payers review admissions frequently.
The core set runs from H0008 through H0014 for acute, sub-acute, ambulatory, and residential detox, plus H0015 for intensive outpatient. Diagnoses come from the F10-F19 range, coded to the correct level of use, abuse, or dependence and to withdrawal with or without complications. MOUD programs also bill buprenorphine, naltrexone, and OTP services.
Yes. A large share of detox programs operate out of network. We handle single case agreement requests, out-of-network claim submission, higher patient-responsibility scenarios, and the appeals and underpayment recovery that out-of-network billing requires.
We manage precertification before admission, then track concurrent and continued-stay reviews throughout the stay so authorizations don't lapse. Because payers often approve only a few days at a time, we treat utilization review as an active part of billing rather than a clinical afterthought.
Medical necessity disputes, level-of-care downgrades, missing or expired authorizations, thin documentation of withdrawal severity, unspecified diagnosis coding, and timely-filing lapses. We appeal these with ASAM-based clinical support and, where a payer applies stricter rules to SUD than to medical benefits, with parity arguments under MHPAEA.
Part 2 sets a stricter confidentiality standard for SUD records than HIPAA, which affects how records are released for claims, appeals, and coordination of benefits. The 2024 SAMHSA rule aligned parts of Part 2 more closely with HIPAA, but consent and disclosure rules still apply. We work within them on every disclosure so record requests don't stall your appeals.
No. We work within the systems you already use, including addiction-specific EHR and practice management platforms, and connect through your clearinghouse for electronic claims and ERA posting.
It depends on the state of your current receivables, but the earliest gains usually come from working the aged claim backlog and correcting first-pass errors. Denial rates and days in AR are the metrics we track, and both are visible in reporting from the start.