C12 Malignant neoplasm of pyriform sinus

Billable ICD-10-CM code, FY2026.

Applicable to

• Malignant neoplasm of pyriform fossa

Use additional code

• code to identify:
• exposure to environmental tobacco smoke (Z77.22)
• exposure to tobacco smoke in the perinatal period (P96.81)
• history of tobacco dependence (Z87.891)
• occupational exposure to environmental tobacco smoke (Z57.31)
• tobacco dependence (F17.-)
• tobacco use (Z72.0)

Applies from C12 Malignant neoplasm of pyriform sinus

Applicable to

• Malignant neoplasm of pyriform fossa

Use additional code

• code to identify:
• exposure to environmental tobacco smoke (Z77.22)
• exposure to tobacco smoke in the perinatal period (P96.81)
• history of tobacco dependence (Z87.891)
• occupational exposure to environmental tobacco smoke (Z57.31)
• tobacco dependence (F17.-)
• tobacco use (Z72.0)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 21 — Lymphoma and Other Cancers
• CMS-HCC V22: HCC 11 — Colorectal, Bladder, and Other Cancers
• ESRD V24: HCC 11

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 148.1 Malignant neoplasm of pyriform sinus

Code annotations containing back-references to C12

Back-references to C12

• Type 2 Excludes: C13 Malignant neoplasm of hypopharynx ("malignant neoplasm of pyriform sinus (C12)")

Back-references to C12

• Type 2 Excludes: C13 Malignant neoplasm of hypopharynx ("malignant neoplasm of pyriform sinus (C12)")

Nearby codes

• C12 Malignant neoplasm of pyriform sinus (this code)