ICD-10-CM C31.1 → ICD-9
Malignant neoplasm of ethmoidal sinus
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify against current official sources before use in billing.
- 1603
Malignant neoplasm of ethmoidal sinus
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify against current official sources before use in billing.