What type of bill is the UB-04 corrected claim bill?


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A UB-04 corrected claim uses a Type of Bill (TOB) code ending in "7" (replacement of a prior claim) in Box 4 of the form.

๐Ÿ“Š Understanding the 4-Digit Code Structure

The Type of Bill is a four-digit code (often starting with a leading zero) where the final digit indicates the claim frequency or sequence.

  • Digit 1: Leading zero (ignored by some payers)
  • Digit 2: Type of facility (e.g., 1 for hospital, 2 for skilled nursing)
  • Digit 3: Type of care/classification (e.g., 1 for inpatient Part A, 3 for outpatient)
  • Digit 4: Frequency Code (7 specifies a replacement/corrected claim)

๐Ÿ’ก Common Corrected Examples

  • ๐Ÿฅ Hospital Outpatient Correction: 0137
  • ๐Ÿ›๏ธ Hospital Inpatient Part A Correction: 0117
  • ๐Ÿก Home Health Correction: 0327