Revenue Code 0118 Simplified: A Rehab Facility’s Guide to Accurate Billing

In medical billing, a small mistake in coding can delay payments, confuse payers, and create a domino effect of denied claims. One code that often gets overlooked or misunderstood is Revenue Code 0118 — the code that represents a private room stay in an inpatient rehabilitation setting.

If you’re managing billing for a rehab facility or inpatient unit, understanding this code isn’t just about accuracy — it’s about ensuring you get paid fairly for the care you deliver.
At DigitixMD RCM, we help facilities bill smarter, stay compliant, and recover every dollar they earn. Let’s break down Revenue Code 0118 in simple terms.

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What Is Revenue Code 0118?

Think of Revenue Code 0118 as a billing label for the room and board your facility provides when a patient stays in a private room during their inpatient rehabilitation.

It doesn’t include therapy or medical services — only the room and general care.

• 0118 → Private room (inpatient rehab)
• 0128 → Semi-private room (inpatient rehab)

Using the right code helps insurers know exactly what kind of stay you’re billing for — and keeps your reimbursements clean and on time.

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What Does 0118 Cover (and What It Doesn’t)

When you list 0118 on a claim, you’re saying:
✔ The patient was admitted to inpatient rehab.
✔ They had a private room.
✔ You’re billing for their room and daily care — nothing more.

Here’s what it doesn’t include:

• Physical Therapy (PT) — Revenue Code 042x
• Occupational Therapy (OT) — 043x
• Speech-Language Pathology (SLP) — 044x

Each therapy service gets billed separately using its own code and CPT/HCPCS pair.

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Who Uses Revenue Code 0118?

Revenue codes like 0118 are always billed by facilities, not by individual clinicians.
That means hospitals, inpatient rehab centers, and skilled nursing facilities are the ones that report it — not therapists or doctors.

So when a hospital submits the UB-04 claim form, the 0118 code tells the payer:

“This patient stayed in a private room during inpatient rehab.”

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When to Use 0118 (and When Not To)

You should use Revenue Code 0118 when:

1. The patient is in an inpatient rehab facility.
2. They are in a private room.
3. They’re receiving coordinated therapy (PT, OT, SLP, etc.).

Example:
A patient recovering from knee surgery stays in your inpatient rehab unit. They receive daily PT and OT while resting in a private room.
✅ You’ll bill 0118 for the room and board.
✅ You’ll bill therapy separately using 042x and 043x.

Don’t use 0118 if:

• The patient is in a semi-private room → use 0128.
• The care is outpatient therapy.
• The patient only receives one type of therapy (e.g., PT only).

Incorrect usage can slow down claims or trigger denials — and that’s exactly what DigitixMD helps prevent.

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How Reimbursement Works for Revenue Code 0118

The reimbursement amount for 0118 can vary depending on:

• The patient’s insurance company
• Your facility’s contract terms
• The type of payer (Medicare or commercial insurance)

Here are some average daily reimbursement examples for reference (subject to variation):

• BCBS: around $327/day
• UnitedHealthcare: around $12,300/day
• Aetna: around $2,200/day
• Cigna: around $19,800/day

👉 Remember: 0118 only pays for room and board. The therapy services and medical treatments are billed separately.

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Step-by-Step: How to Bill Revenue Code 0118 Correctly

Here’s a clear roadmap to ensure your 0118 claims are clean, supported, and paid on time.

Step 1: Verify Coverage Before Admission

Before the patient is admitted, confirm:

• Inpatient rehab is covered under their plan.
• Your facility is in-network.
• Pre-authorization is obtained (if needed).
• The allowed number of rehab days.

Doing this upfront prevents headaches later when it’s time to bill.

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Step 2: Complete the UB-04 Claim Form Accurately

On the UB-04:

• Field 42 (Revenue Code): Enter 0118
• Field 46 (Units): Number of inpatient days
• Field 47 (Total Charges): Room rate × number of days

🕐 Tip: Use the midnight rule to count days — every midnight the patient stays counts as one day.

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Step 3: Ensure Medical Necessity Documentation

Your notes should show why the patient required inpatient rehab instead of outpatient care. Include:

• Reason for admission
• Interdisciplinary treatment plan
• Daily progress updates
• Discharge plan

Good documentation supports your claim and minimizes payer pushback.

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Step 4: Bill Therapies Separately

Keep therapy codes separate:

• PT → 042x
• OT → 043x
• SLP → 044x

Physician visits should go on a CMS-1500 form instead.

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Step 5: Review and Submit

Before sending your claim:
✅ Double-check revenue codes and units.
✅ Make sure authorization info is attached.
✅ Confirm documentation supports the claim.
✅ Submit electronically whenever possible for faster payment.

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How DigitixMD RCM Ensures You Get Paid for Every Rehab Day

At DigitixMD RCM, we don’t just process claims — we make sure you’re paid accurately and promptly for every day your patients stay under care.

Our team helps facilities by:

• Verifying eligibility and coverage upfront
• Assigning correct revenue and therapy codes
• Submitting clean UB-04 claims
• Following up on denials or underpayments

We bring together technology and expertise to make sure your billing runs smoothly, reimbursements arrive faster, and compliance stays strong.

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Key Takeaway

Revenue Code 0118 may seem like a small detail, but getting it right makes a big difference in how rehab facilities get reimbursed.

By using it correctly — and pairing it with proper documentation and code separation — your claims will stay compliant, your payments will be timely, and your cash flow will stay steady.

Let DigitixMD RCM handle the coding and claim process, so your team can focus on what truly matters — helping patients recover.

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Frequently Asked Questions