Hospice Type of Bill Codes Explained: What 81X Means and How to Use It Correctly
When a hospice organization submits a Medicare claim, one of the first things the payer reads is the Type of Bill code. It appears in field locator 04 of the UB-04 claim form, and it tells Medicare two things simultaneously: what kind of provider is submitting the claim, and where that claim falls within the billing cycle. Get it right and the claim routes correctly. Get it wrong and the claim generates an automatic denial regardless of how accurate everything else on the form is.
For hospice billers and administrators who want a clear, practical reference to how hospice Type of Bill codes work, this post explains the 81X structure, what each digit means, how frequency codes determine which code applies in each situation, and where billing errors most commonly occur.
The Structure of a Hospice Type of Bill Code
Every hospice Medicare claim uses a Type of Bill code that begins with the digits 81 the first two characters that identify the claim as belonging to a hospice provider under Medicare billing rules. The third digit in the sequence is always 1 for hospice claims, indicating inpatient or equivalent care under the hospice benefit. The fourth digit called the frequency code is where the meaningful variation occurs, and it is the digit that causes the most billing errors.
The complete Type of Bill code for a hospice claim is therefore a four-character string: 8, 1, 1, and a frequency digit. In practice, it is written as 81X, where X represents the frequency code specific to that claim’s position in the billing cycle. Understanding what each frequency digit means is essential to submitting hospice claims correctly.What this means for your organization: The 81 prefix is fixed for all hospice Medicare claims. The work and the risk are in the frequency code. Every hospice biller should be able to identify the correct frequency code for any claim without hesitation, because an incorrect frequency code generates an automatic denial that requires correction and resubmission regardless of the underlying clinical accuracy of the claim.
Hospice Frequency Codes: What Each Digit Means
811 – Admit Through Discharge
Frequency code 1 is used when a single claim covers the patient’s entire hospice enrolment from admission through discharge or death. This code applies when the billing period and the total length of enrolment are the same most commonly for short-stay hospice enrolees whose entire benefit period falls within a single claim cycle. It signals to Medicare that this is a complete, final claim for the enrolment period.
812 – Interim First Claim
Frequency code 2 is used for the first claim submitted for a patient who remains enrolled in hospice at the end of the billing period. It signals that this is the beginning of a multi-claim enrolment the patient was admitted before the end of the billing cycle and will remain in hospice, meaning subsequent claims will follow. Using code 2 on the first claim in a continuing enrolment is required; submitting an 811 for a patient who is still enrolled creates a billing conflict when the next claim arrives.
813 – Interim Continuing Claim
Frequency code 3 applies to all monthly claims submitted for a patient who was admitted in a prior billing period and remains enrolled. Most claims for long-stay hospice patients use this code it signals an ongoing enrolment with claims expected both before and after this billing period. Each monthly claim during a continuing stay uses 813 until the patient is discharged or dies.
814 – Interim Last Claim
Frequency code 4 is used for the final claim in a multi-claim enrolment when the patient is discharged or dies during a billing period that began after their initial admission period. It signals that this is the last claim for this enrolment, closing the billing cycle for that patient. Using 814 correctly on the final claim is important: submitting another 813 after a discharge, or submitting 814 before the enrolment has ended, creates billing sequence errors that generate processing delays.
817 – Replacement Claim
Frequency code 7 is used to replace a previously submitted and processed claim when corrections are needed. When a hospice claim has already been paid or adjudicated and a billing error is identified that requires correction an incorrect care level, a wrong date of service, a missing condition code the corrected claim is submitted with frequency code 7, which tells Medicare to replace the original processed claim with the corrected version.
818 – Void or Cancel
Frequency code 8 is used to cancel or void a previously submitted claim entirely. This is appropriate when a claim was submitted in error for example, when a patient was billed under the wrong enrolment period or when duplicate claims were submitted for the same dates of service. An 818 void does not replace the claim with a corrected version; it cancels it. If corrected billing is needed, a new 812, 813, or 814 claim follows the void.
What this means for your organization: Frequency code selection is not a mechanical step it requires the biller to know the patient’s current enrolment status at the time of submission. A biller who applies frequency codes by habit or pattern rather than by confirmed enrolment status will generate sequence errors that cascade through subsequent billing periods for the same patient.
Common Hospice Type of Bill Coding Errors
The following errors account for most hospice Type of Bill denials and processing issues. Most are preventable with a pre-submission verification step that confirms enrolment status before the frequency code is assigned.
Using 811 for a patient who remains enrolled. Submitting an admit-through-discharge claim for a patient who is still in hospice closes the billing cycle prematurely. When the next monthly claim arrives, it conflicts with the already-closed record and generates a denial.
Using 813 on the final claim instead of 814. Submitting a continuing claim code when the patient has been discharged or has died leaves the billing cycle open. The claim may process, but the open status creates reconciliation issues and can generate billing conflicts on subsequent claims or during audit review.
Using 812 on a claim that should be 813. When a biller uses the interim-first code on what is a continuing claim perhaps because they are unfamiliar with the patient’s enrolment history it signals to Medicare that this is the beginning of a new enrolment rather than a continuation of an existing one. This generates a conflict with the existing enrolment record.
Submitting a replacement (817) when a void (818) was needed. A replacement claim corrects and replaces a previously processed claim. A void cancels it. Using the wrong code submits a corrected claim into the system when the intent was to cancel creating a billing record that doesn’t reflect the intended outcome.
What this means for your organization: Hospice Type of Bill errors are among the most preventable categories of claim denial in hospice billing. A pre-submission review that verifies each patient’s enrolment status and confirms the correct frequency code before the claim is released eliminates most of these errors before they reach the payer.
Type of Bill and Hospice Revenue Codes: How They Work Together
The Type of Bill code does not stand alone on a hospice claim it works in conjunction with the revenue codes that categorize the services provided during the billing period. The primary revenue codes used in hospice billing are 0651 for Routine Home Care, 0652 for Continuous Home Care, 0655 for Inpatient Respite Care, and 0656 for General Inpatient Care. Each revenue code must reflect the actual level of care provided and be supported by clinical documentation that establishes the medical necessity for that care level.
When the Type of Bill code and revenue codes are inconsistent for example, when revenue codes reflect a care level transition that the dates of service on the claim do not support the claim generates an edit that flags the inconsistency for review. Ensuring that the Type of Bill code, revenue codes, and dates of service are internally consistent is a basic pre-submission validation that prevents a category of denials that have nothing to do with the underlying clinical care.
Need Help Managing Hospice Billing Compliance?
MCA Medical Billing Solutions, L.L.C. provides specialized hospice billing services including claim coding review, Type of Bill validation, care level billing management, and denial resolution for hospice organizations that need billing accuracy and compliance without the overhead of a fully staffed internal billing department.