D37.0Neoplasm of uncertain behavior of lip, oral cavity and pharynx

D37.0 is the ICD-10-CM diagnosis code for neoplasm of uncertain behavior of lip, oral cavity and pharynx. It belongs to category D37 (neoplasm of uncertain behavior of oral cavity and digestive organs), block D37-D48 (neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within D37 (neoplasm of uncertain behavior of oral cavity and digestive organs), D37.0 is specifically for neoplasm of uncertain behavior of lip, oral cavity and pharynx. Related codes cover stomach (D37.1), small intestine (D37.2), appendix (D37.3), colon (D37.4), rectum (D37.5), liver, gallbladder and bile ducts (D37.6), other specified digestive organs (D37.8) and digestive organ, unspecified (D37.9).

To report this condition, pick the subcode that matches the documentation: D37.01 (lip), D37.02 (tongue), D37.03 (glands), D37.04 (glands), D37.05 (pharynx) and D37.09 (cavity).

Don't report D37.0 together with the conditions in its Excludes1 note: neoplasm of uncertain behavior of aryepiglottic fold or interarytenoid fold, laryngeal aspect (D38.0), neoplasm of uncertain behavior of epiglottis NOS (D38.0), neoplasm of uncertain behavior of skin of lip (D48.5) and neoplasm of uncertain behavior of suprahyoid portion of epiglottis (D38.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.