US · guidance
CMS SOM Ch. 4 § 4790B
Exceptions to Cost Allowability Rules
4790.1 - Determinations of Overpayment - RO Procedures
4790.2 - Determination and Computation of Dollar Amounts - Use of Estimates -
RO Procedures
4790.3 - Time Period for Computing Disallowances - RO Procedures
4790.4 - Inability to Determine Dollar Amounts - RO Procedures
4790.4A - Supporting Costs By Alternative Means or Developing
Reasonable Estimate of Unallowable Costs
4790.4B - Costs Have Not Been Supported
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
9e035407f45709d6c8d3162e19bc6f6cf600651798972bd9fdd2b51ba544cd99
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