C30-C39 — Malignant neoplasms of respiratory and intrathoracic organs
ICD-10-CM codes C30-C39 cover malignant neoplasms of respiratory and intrathoracic organs, within neoplasms. The block holds 51 codes across 8 categories, of which 40 are billable and 11 are header codes that cannot be submitted on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- mesothelioma (C45.-)
Includes
Conditions this code covers.
- malignant neoplasm of middle ear
Risk adjustment in C30-C39
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 21 Lymphoma and Other Cancers
- HCC 20 Lung and Other Severe Cancers
What else to watch in C30-C39
- 10 codes are laterality-specific. They come in left and right pairs, and the pair is mutually exclusive on a single site: coding both without a bilateral code is a contradiction a scrubber should catch before the payer does.
- 40 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in C30-C39
- C30Malignant neoplasm of nasal cavity and middle ear
- C31Malignant neoplasm of accessory sinuses
- C32Malignant neoplasm of larynx
- C33Malignant neoplasm of trachea
- C34Malignant neoplasm of bronchus and lung
- C37Malignant neoplasm of thymus
- C38Malignant neoplasm of heart, mediastinum and pleura
- C39Malignant neoplasm of other and ill-defined sites in the respiratory system and intrathoracic organs