UB04 Type of Bill Code 0141: Hospital Other (Part B) - Admit through Discharge Claim

Overview

The UB-04 Type of Bill code 0141 designates a "Hospital Other (Part B) - Admit through Discharge Claim." This four-digit code is structured as follows: leading zero (ignored by CMS), type of facility "1" (Hospital), type of care "4" (Other Part B), and frequency "1" (Admit Through Discharge). ^[1]

The frequency digit "1" indicates this is a complete claim covering the entire period of service, from admission to discharge, with no interim bills. This is different from frequency codes "2" (Interim - First Claim), "3" (Interim - Continuing), or "4" (Interim - Last Claim), which are used when services span multiple billing periods. ^[1]

MassHealth providers must use the UB-04 claim form for hospital claims, including acute inpatient and acute outpatient hospitals. All claims must be submitted electronically unless the provider has received an approved waiver. ^[2]

When to Use

Use code 0141 when a hospital provides Part B services to a beneficiary who is not an inpatient (i.e., the patient is classified as "other" for Part B purposes) and the entire episode of care occurs within a single billing period with no interim claims needed. ^[1]

It is specifically for "Other Part B" services where the care does not fit standard inpatient or outpatient categories. ^[1]

The frequency digit "1" confirms this claim covers the entire service period from admission through discharge, making it suitable for single-episode Part B services that begin and end within the same billing cycle. If the service period spans multiple billing cycles, use an interim frequency code (2, 3, or 4) instead. ^[1]

Step-by-Step Claim Example

Scenario: A Medicare beneficiary receives observation services at a hospital for two days (January 15–16, 2025). The services are covered under Part B (not inpatient Part A). The claim covers the entire episode with no interim bills.

Step 1: Enter the Type of Bill in Field 4 Code: 0141

• 0 = Leading zero (informational)
• 1 = Hospital (type of facility)
• 4 = Other Part B (type of care)
• 1 = Admit through discharge (frequency)

Step 2: Complete Patient and Provider Information (Fields 1–13)

• Field 1: Provider name, address, and billing number
• Field 2: Pay-to name and address (if different)
• Field 3a-b: Patient control number and Medical/Health Record Number
• Field 4: Type of Bill = 0141
• Field 5: Federal Tax Number
• Field 6: Statement Covers Period (From: 01152025, Through: 01162025)
• Field 7–10: Patient name, address, birth date, sex

Step 3: Enter Service Details (Fields 42–51)

• Revenue codes for observation services (e.g., 0761 for Treatment/Observation Room)
• HCPCS codes for services provided
• Dates of service (January 15 and 16)
• Units of service (e.g., 2 days)
• Total charges

Step 4: Calculate and Enter Values (Fields 52–66)

• Field 52: Total charge amount for all services
• Field 54–56: Adjustments, NDC, and Prior payments as applicable
• Field 60: Insurance carrier ID (e.g., Medicare Part B)
• Field 66: Diagnosis codes (ICD-10-CM)

Step 5: Submit

• Verify all fields are complete and accurate
• Submit electronically (or paper with approved waiver per MassHealth guidelines)

Common Mistakes & Audit Red Flags

Incorrect Type of Care (3rd Digit): Using "1" (Inpatient Part A) or "3" (Outpatient) instead of "4" (Other Part B) is the most frequent error. This can occur when providers incorrectly classify observation services as inpatient vs. other Part B. ^[1]

Frequency Mismatch: Using frequency "1" when the service period spans multiple billing cycles. The admit-through-discharge flag requires the entire episode to be completed within one billing period. If interim bills are needed, use codes 2, 3, or 4. ^[1]

Missing Revenue Codes: Revenue codes for observation services (076x series) must match the Part B nature of the claim. Using inpatient revenue codes (e.g., 0114 for room and board) may trigger audits.

Documentation Gaps: Part B claims for "other" services require clear medical necessity documentation showing the patient did not meet inpatient criteria. Missing physician orders for observation or insufficient documentation of the observation period can lead to denials.

Payer-Specific Rules: Some payers (like MassHealth) require electronic submission unless a waiver is granted. Paper claims without an approved waiver will be rejected. ^[2]

Duplicate Billing: Submitting both an 0111 (inpatient Part A) and 0141 (other Part B) claim for the same service period may flag duplicate billing. Verify correct patient classification before submission.

Related Codes/Fields

Code/Field	Meaning	Relationship to 0141
0111	Hospital Inpatient (Part A) - Admit through Discharge	Different type of care (1 vs 4); used for inpatient stays vs. other Part B services
0121	Hospital Inpatient (Part B) - Admit through Discharge	Different type of care (2 vs 4); for inpatient Part B, not other Part B
0131	Hospital Outpatient - Admit through Discharge	Different type of care (3 vs 4); standard outpatient vs. other Part B
0142	Hospital Other (Part B) - Interim First Claim	Same facility/care type but different frequency; for multi-cycle billing
0143	Hospital Other (Part B) - Interim Continuing	Same facility/care type but continuing interim bills
0144	Hospital Other (Part B) - Interim Last Claim	Same facility/care type but final interim bill
0145	Hospital Other (Part B) - Late Charge Only	Same facility/care type but for late charges only
Field 42-43	Revenue Code	Must match Part B nature (e.g., 0761 for observation)
Field 66	Diagnosis Code	Required for medical necessity documentation

All related Type of Bill codes follow the same structure where the first four digits (0, facility type, care type, frequency) define the claim's purpose and billing pattern. ^[1]

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References

[1] Noridian Bill Types — https://med.noridianmedicare.com/web/jea/topics/claim-submission/bill-types

[2] MassHealth UB-04 Guide — https://www.mass.gov/doc/ub-04-billing-guide-0/download