US · guidance
CMS Pub. 100-04, ch. 4, § 240.5
Payment of Part B Services in the Payment Window for
Outpatient Services Treated as Inpatient Services When Payment
Cannot Be Made Under Part A
(Rev. 2877, Issued: 02-07-14, Effective: 10-01-13, Implementation: 04-07-14)
See Pub. 100-02, Medicare Benefit Policy Manual, Chapter 6, §10 (“Medical and Other
Health Services Furnished to Inpatients of Participating Hospitals”) and Pub 100-04,
Medicare Claims Processing Manual, Chapter 4, §10.12 (“Payment Window for
Outpatient Services Treated as Inpatient Services”) regarding services bundled into the
original Part A claim under the 3-day (1-day for non-IPPS hospitals) payment window
prior to the inpatient admission, that may be billed to Part B when Part A payment cannot
be made. Hospitals should use the following type of bill to report these services:
• 13X TOB (85X for a CAH)- Hospital outpatient services included in the payment
window for outpatient services treated as inpatient services
• 14X TOB- Laboratory tests that are paid under the clinical laboratory fee schedule
(see chapter 16, §40.3 of this manual), and included in the payment window for
outpatient services treated as inpatient services
History
(Rev. 2877, Issued: 02-07-14, Effective: 10-01-13, Implementation: 04-07-14)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
73a7e3727141f3d055114b1c50dd31132757cbaf37369b04cee7d33d747b6d13
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