AHA Coding Clinic® for ICD-9 - 2011 Issue 3; Ask the Editor

Abnormal Coombs Test

Should code 779.89, Other specified conditions originating in the perinatal period, be assigned with the abnormal findings codes 790-796, to identify nonspecific abnormal findings in a newborn? For example, can code 779.89 be assigned with code 790.99, Other nonspecific findings on examination of blood, Other, for a positive Coombs test in which the provider stated that the antibodies detected by this screening were not clinically significant with regard to the newborn? ...

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