What is the diagnosis pointer code on the CMS-1500 claim form?
On a CMS-1500 form, the
diagnosis pointer acts as a reference, associating the proper diagnosis code
(ICD-10) with the procedure being billed.
The diagnosis pointer is
entered in Box 24E on a CMS-1500 claim form. In box 24E, use the letters A
through L to correspond with the diagnosis code placement in field 21. Do
not use commas or other separators between the letters when multiple diagnosis
pointers are entered.

Do not enter the diagnosis
code in the diagnosis pointer field in box 24E; only the corresponding
reference letter.
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