Malignant neoplasm of other and ill-defined sites in the respiratory system and intrathoracic organs
In Malignant neoplasms of respiratory and intrathoracic organs (C30-C39), chapter 2: Neoplasms
2 billable codes under C39: none are a CC or MCC; all map to HCC 21 (Lymphoma and Other Cancers).An HCC counts toward a Medicare Advantage patient's risk score.
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Instructional notes
Excludes1: not coded here, use a different code
Use additional code: add a second code for this, listed after this one
Also applies, from Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)
These notes sit on C30-C39 and apply to every code under it, including C39.
Includes: conditions that are coded here
- malignant neoplasm of middle ear
Excludes1: not coded here, use a different code
- mesothelioma (C45.-)
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding benign and malignant neoplasms: using the Neoplasm Table, sequencing primary and secondary sites, treatment encounters, complications, and current cancer versus personal history.
- Admission/Encounter for treatment of primary site (page 33)
- Admission/Encounter for treatment of secondary site (page 33)
- Coding and sequencing of complications (page 34)
- Primary malignancy previously excised (page 34)
- Admissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy (page 35)
- Admission/encounter to determine extent of malignancy (page 36)
- Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms (page 36)
- Admission/encounter for pain control/management (page 36)
All codes under C39
C39 can't be used on a claim. Pick a billable code below; grey headings group them.
C39 MS-DRGs
As the principal diagnosis, the billable codes under C39 group to MS-DRG 180, 181, or 182 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 180 Respiratory Neoplasms with MCC (1 of 2 codes)
- DRG 181 Respiratory Neoplasms with CC (1 of 2 codes)
- DRG 182 Respiratory Neoplasms without CC/MCC (1 of 2 codes)
Other codes that refer to C39
Notes on these codes point to C39.
- Z80.2 Includes: Conditions classifiable to C30-C32, C37-C39
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Cancer
Cancer is not just one disease but many diseases. Cancer begins in your cells, which are the building blocks of your body. Usually, your body forms new cells as needed, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor.
Read more about cancer on MedlinePlusLung Diseases
When you breathe, your lungs take in oxygen from the air and deliver it to the bloodstream. The cells in your body need oxygen to work and grow. During a normal day, you breathe nearly 25,000 times. People with lung disease have difficulty breathing. Millions of people in the U.S. have lung disease. If all types of lung disease are lumped together, it is the number three killer in the United States.
Read more about lung diseases on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.