Commercial Residential SUD Billing: Rev Codes and Rates (OR, WA, ID)

As of September 2026, commercial residential SUD claims are billed on the institutional claim (UB-04 or 837I) with a revenue code, usually 1002 (residential treatment, chemical dependency), and many commercial contracts pay a negotiated per diem per level of care with no published rate. Oregon Medicaid bills residential SUD under H0018 and H0019. Washington and Idaho Medicaid use different codes by level of care, so check each state's fee schedule. Commercial contracts in Oregon, Washington, and Idaho are where residential programs earn their margin, and they are won through contracting, accreditation, and clean authorization workflows rather than a fee schedule.

How are commercial residential claims different from Medicaid claims?

Medicaid residential billing is built around HCPCS per-diem codes and a state fee schedule. Commercial billing is built around the contract. The payer negotiates a per diem (or a percentage of billed charges) for each level of care, and the claim proves the stay with a revenue code, dates of service, and an authorization number. Three consequences follow:

• The rate is a contract term. There is no public commercial fee schedule for residential SUD, so the number you can bill is the number you negotiated, or your billed charges if you are out of network.
• The revenue code carries the accommodation. The UB-04 revenue code list puts residential behavioral health in the 100x series: 1001 residential treatment (psychiatric), 1002 residential treatment (chemical dependency), 1003 supervised living, 1004 halfway house, and 1005 group home. A chemical dependency residential program normally bills 1002.
• Authorization drives payment. Commercial payers pay against approved days, so a missed notification window can void a stay that was clinically appropriate.

Whether a given commercial payer also wants H0018 or H0019 on the same service line varies by contract and by plan. We could not verify a uniform Northwest rule from payer documents, so get the pairing rule in writing before your first claim. If you are starting from the level-of-care question, our Oregon residential licensing guide maps ASAM levels to license types. Level-of-care design, authorization and denial work for residential SUD programs sit inside our addiction treatment center consulting.

What do commercial payers actually pay for residential SUD?

Commercial residential per diems are negotiated and confidential, and we are not going to publish a made-up range. Commercial contracts generally pay well above Medicaid, but the gap depends on the payer, the level of care, and your leverage. The NAATP Addiction Treatment Reimbursement Benchmark Reports are the closest thing to a commercial rate benchmark, though they are paid, member-oriented products.

Two free sources are more useful than any blog range. First, every commercial plan must post machine-readable in-network rate files under the federal transparency-in-coverage rule (45 CFR 147.212); filtering them by your NPI type and revenue code 1002 shows what payers pay comparable Northwest facilities. Second, your own remittances: after six months of claims you will know each payer's effective per diem better than any benchmark. Our free 90-day claims audit does that comparison for you, pulling each payer's effective per diem from your own remits and flagging stays that paid below contract.

Use the Medicaid figures below as a floor in your pro forma and model commercial upside only against a contract offer or a rate-file pull.

How do Oregon, Washington, and Idaho commercial rules shape residential revenue?

Oregon. ORS 743A.168 requires commercial group health insurers to cover behavioral health, including residential treatment when clinically indicated, at parity with medical benefits. ORS 743A.168 applies to group health insurers and individual non-grandfathered plans. It directs insurers to use the most recent level-of-care placement criteria from the relevant professional association, which in SUD means ASAM, and it requires utilization review by qualified clinicians using NCQA or Medicare standards and criteria shared with providers in advance. In practice, that gives you an appeal argument when a payer places a member at a lower level of care than your ASAM assessment supports. The state also licenses and approves residential programs under OAR chapter 309, division 18.

Washington. Commercial policies increasingly build in Washington-specific rules. For example, PacificSource's commercial SUD policy covers ASAM levels 3.1, 3.3, and 3.5 residential, requires notification within two business days of admission, and states that the first two business days at any Washington facility are covered without medical necessity review. It also requires facilities to hold licensure and/or accreditation for the level of care provided. Facility licensure runs through WAC 246-337, with agency certification under WAC 246-341; see our Washington residential treatment facility guide.

Idaho. Idaho Code 39-306B requires department contractors that provide residential treatment services to hold CARF accreditation and an ASAM level of care certification consistent with level III standards. Idaho also approves treatment facilities under Idaho Code 39-305. Commercial and Medicaid contracting run on separate tracks: Magellan of Idaho administers Medicaid behavioral health and negotiates residential rates individually (see the Magellan enrollment guide), while commercial contracts are negotiated with each plan. Accreditation therefore does double duty for an Idaho facility, satisfying the rule and opening commercial networks. Our Joint Commission accreditation consulting covers that readiness work for residential programs that choose the Joint Commission.

Rule status. Idaho moved its substance use disorder service rules from IDAPA 16.07.17 into Title 39, Chapter 3 of Idaho Code through Senate Bill 1024, effective July 1, 2025. The bill's Statement of Purpose says it does not increase or reduce service levels. The residential accreditation requirement now names CARF only, where the former rule also accepted the Joint Commission and the Council on Accreditation. References to IDAPA 16.07.17 in this article point to the final published version of the rule.

What does OHP pay, and why does it matter for a commercial pro forma?

Medicaid is your floor, your fallback payer for members who lose commercial coverage, and the source of the only published residential figures. Oregon Health Authority sets residential SUD per diems as customary charges by program type and bed count, and the published tiers have moved over time.

OHA also added an ASAM 3.7-R tier in April 2024 at a $647.00 per day customary charge, billed as H0018 through day 30 and H0019 from day 31, and has applied further increases since (OHA rate increase history). Two lessons carry into commercial work: bed count changes your rate tier (the federal IMD definition draws the line above 16 beds), and payers can recoup. OHA reprocessed claims from July 1, 2022 through March 20, 2023 after a rate error. Reprocessing applied to IMD per diem claims only (July 1, 2022 to March 20, 2023). For Medicaid payer detail, see our Oregon CCO contracting playbook.

Washington's Health Care Authority bills residential per diems by population modifier and lists room and board separately as H2036 (HCA SUD billing guide, July 1, 2026). Magellan of Idaho publishes SUD residential per diems in its IBHP rate schedule. Psychiatric residential levels are individually negotiated.

How do the payer tracks compare?

What are the common commercial residential denial patterns?

• Missed notification window. Plans such as PacificSource require notice within two business days of admission. Build the call into your admissions checklist, not your billing workflow.
• Level-of-care downgrade. The payer approves a lower ASAM level than the assessment supports. Cite ORS 743A.168 and your documented ASAM dimensions in the appeal.
• Revenue code and HCPCS mismatch. A code that does not match the program type, or a missing H-code where the contract requires one, rejects the line.
• Out-of-network underpayment. Without a contract, you are paid a plan-determined allowed amount, often far below billed charges. Single-case negotiation and network contracting fix this; see our payer contracting service.
• Overlapping services. An IOP or outpatient line on the same date as a residential per diem triggers edits. Cut over cleanly at step-down.
• Room and board confusion. Confirm whether the contract bundles room and board into the per diem or carves it out.

For the wider denial workflow, see our behavioral health RCM denials guide, and for the outpatient step-down code, see H0015 billing in Oregon, Washington, and Idaho.

How should you build a commercial-first residential pro forma?

Start with the contract, not the census. Model commercial as the target payer, with a conservative rate until you have an offer, and Medicaid as the floor. Layer in average authorized days versus actual stay, the notification and concurrent review cadence, a denial reserve, and a recoupment reserve. Add a 90 to 180 day ramp for network credentialing and contracting, because commercial enrollment is slower than most founders expect and out-of-network revenue is unreliable. Accreditation belongs in the plan early; it is both a payer requirement and a negotiating asset. Medicare has no residential SUD benefit, so a residential program's Medicare exposure sits in its step-down levels; see who can actually bill Medicare for intensive outpatient before you count Medicare in your IOP line. Our revenue cycle management guide and revenue cycle and payer services cover the infrastructure behind this, and our behavioral health billing service is how we run it once the doors open.

Frequently asked questions

Do commercial payers use revenue codes for residential SUD?

Yes. Residential programs bill on the institutional claim, where revenue code 1002 (residential treatment, chemical dependency) is the usual accommodation code. Confirm each payer's pairing rule for H0018 or H0019 in writing.

What do commercial insurers pay per day for residential SUD?

It depends on the contract. There is no public commercial fee schedule; use in-network rate files, benchmark reports, and your own remittances rather than published ranges.

Is Medicaid a good benchmark for commercial residential rates?

It is a floor. Commercial contracts generally pay well above Medicaid, but the gap depends on the payer, the level of care, and your contract.

Can a commercial insurer downgrade my level of care in Oregon?

Payers must use current professional level-of-care criteria such as ASAM and qualified reviewers under ORS 743A.168, which supports an appeal when placement conflicts with your assessment.

Does accreditation help with commercial contracting?

Yes. Many payers require licensure or accreditation for the level of care, and Idaho's rule requires accreditation for residential programs, so it does double duty.

Where do I confirm current Medicaid rates?

Use the OHP fee schedule for Oregon, HCA's SUD fee schedule and MCO exhibits for Washington, and your Magellan contract for Idaho.

See what your residential billing is leaving uncollected

A residential program earns commercial margin only when the license, accreditation, network contracts, authorizations and claims all line up. Saint Health Group's billing team has run treatment programs, so we read a denied or underpaid stay the way a clinical director and a biller read it together. Our free 90-day claims audit reviews your residential claims under a signed BAA and returns written findings with dollar amounts: missed notification windows, level-of-care downgrades, per diems paid below contract and room-and-board errors. If you are still planning the program, talk to us before you set your bed count or open payer negotiations.