D38Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs

D38 is the ICD-10-CM diagnosis code for neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs. It belongs to 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 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: D38.0 (larynx), D38.1 (lung), D38.2 (pleura), D38.3 (mediastinum), D38.4 (thymus), D38.5 (organs) and D38.6 (unspecified).

Don't report D38 together with the conditions in its Excludes1 note: neoplasm of uncertain behavior of heart (D48.7).

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