This is a claim level reject reason code for claims that have all line items rejected with C7251, C7252, C7253, C7254, C7255, C7256 or C7257 received from the Common Working File (CWF). These rejections usually appear on the claim when the line item dates of service (LIDOS) are within the admission and discharge dates of another facility’s claim. For example, reason code C7251 will appear as the claim denial when the LIDOS of an outpatient claim (e.g., 12X, 13X, 14X, 22X, 23X, 34X, 74X, 75X, 83X and 85X) overlaps with a Part A skilled nursing facility (SNF) inpatient claim (21X) or when the outpatient claim LIDOS overlaps with an inpatient Part B (22X) claim.

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