Neoplasm of uncertain behavior of unspecified adrenal gland

This code signifies a tumor of the adrenal gland where the pathologist cannot definitively determine if it is benign or malignant based on microscopic examination. It represents an abnormal growth with features that are neither clearly benign nor clearly cancerous.

Use this code when pathology reports describe an adrenal lesion as "uncertain behavior," "borderline malignancy," or "indeterminate." This code is appropriate when the documentation specifies an adrenal gland but does not indicate laterality (left or right).

• Ensure the pathology report explicitly states "uncertain behavior" or similar terminology. Do not use for suspected malignancy without pathological confirmation.
• If laterality (left or right adrenal gland) is documented, use the more specific codes D44.11 (right) or D44.12 (left).
• This code is often a temporary diagnosis while awaiting further diagnostic workup or definitive pathology.