D14.4Benign neoplasm of respiratory system, unspecified

D14.4 is the ICD-10-CM diagnosis code for benign neoplasm of respiratory system, unspecified. It belongs to category D14 (benign neoplasm of middle ear and respiratory system), block D10-D36 (benign neoplasms, except benign neuroendocrine tumors) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within D14, choose D14.4 (respiratory system, unspecified) only when documentation doesn't support a more specific option: middle ear, nasal cavity and accessory sinuses (D14.0), larynx (D14.1), trachea (D14.2) and bronchus and lung (D14.3).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 180 (Respiratory Neoplasms with MCC, relative weight 1.7806), DRG 181 (Respiratory Neoplasms with CC, relative weight 1.0936) and DRG 182 (Respiratory Neoplasms without CC/MCC, relative weight 0.7439), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

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

Before ICD-10, this condition was coded in ICD-9-CM as 212.9 (benign neoplasm of respiratory and intrathoracic organs, site unspecified).