US · guidance
CMS Pub. 100-04, ch. 4, § 180.1
General Rules
Hospitals subject to OPPS are required, beginning with claims with dates of service on or
after August 1, 2000, to report in Form Locator 6 “Statement Covers Period From Date”
the earliest date that services were rendered. As a result, preoperative laboratory services
will always have a line item date of service within the “from and through” dates on the
claim.
Indian Health Service hospitals continue to bill for surgeries utilizing bill type 83X. For
other hospitals outpatient surgery subject to the ASC payment limit with dates of service
prior to August 1, 2000, is reported on bill type 83X, and surgeries performed August 1,
2000 and later are reported with bill type 13X.
NOTE: Effective for dates of service on or after January 1, 2008, the A/B MAC (A) no
longer processes claims on TOB 83X for ASCs. All IHS ASC providers must submit
their claims to the designated A/B MAC (B).
History
(Rev. 1325; Issued: 08-29-07; Effective: 01-01-08; Implementation: 01-07-08)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
d2001a042f6cd31cf9fc3ffaadb23f56963a9189fa19fa5574fc7680e86e37f8
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