D37.04 ICD-10-CM Code: Neoplasm of uncertain behavior of the minor salivary glands

D37.04 is the ICD-10-CM diagnosis code for neoplasm of uncertain behavior of the minor salivary glands. This code describes an abnormal growth in the small salivary glands (found throughout the mouth and throat) that cannot yet be determined to be cancer or benign. These growths require further testing or monitoring to determine their true nature. D37.04 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (d37-d48).

D37.04 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Ensure documentation specifies the location of the minor salivary gland involvement, as this affects code selection and clinical management.