C15.4
BillableMalignant neoplasm of middle third of esophagus
HCC Category Mapping
V28HCC 20 — Lung and Other Severe Cancers
0.000V24HCC 9 — Lung and Other Severe Cancers
0.973ESRDHCC 9 — Lung and Other Severe Cancers
0.000What This Code Means
Cancer of the middle section of the esophagus, the tube that carries food from the throat to the stomach.
Coding Tips
- •The middle third of esophagus is approximately from 24-32 cm from the incisor teeth
- •Ensure documentation specifies middle third location; if unspecified, use C15.9 instead
Clinical Significance
Malignant neoplasm of the middle third of the esophagus represents cancer in the thoracic esophagus at the level of the tracheal bifurcation and aortic arch. This location is surgically challenging due to proximity to vital mediastinal structures, and five-year survival rates remain poor at approximately 15-25% for all stages combined.
Documentation Requirements
- ✓Pathology-confirmed malignancy with histological type
- ✓Documentation specifying middle third of esophagus (approximately 24-32 cm from incisors)
- ✓Endoscopic ultrasound for T and N staging
- ✓PET/CT for metastatic evaluation
- ✓Assessment of mediastinal invasion (trachea, aorta, vertebral body)
- ✓Nutritional status, weight loss documentation, and performance status
Commonly Confused Codes
C15.3 — Upper third of esophagus; the upper third is the cervical esophagus, above the middle thoracic portionC15.5 — Lower third of esophagus; the lower third approaches the gastroesophageal junctionC15.9 — Esophagus, unspecified; avoid when endoscopy specifies the middle thirdC34.x — Lung cancer; mediastinal esophageal tumors may be confused with lung masses on imaging