AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 2; Ask the Editor

Anemia due to Chemotherapy

Is it appropriate for the coding professional to assume a causal relationship between anemia and chemotherapy, blood loss or other deficiencies based on the subterm "due to" without provider documentation of the linkage? For example, in the Index under Anemia due to chemotherapy, "due to" is accompanied by nonessential modifiers (in) and (with) as follows:Anemia      due to (in) (with)        antineoplastic chemotherapy D64.81        chemotherapy, antineoplastic D64.81.Would the "With" guideline apply here since the terms “with” and “in” are nonessential modifiers? ...

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