C14 ICD-10-CM Code: Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx
C14 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Neoplasms (C00-D49) / Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
C14
Header CodeICD-10-CMOfficial ICD-10-CMCodebook guidanceMalignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx
Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for C14 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for C14 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for C14 in this effective period.
Excludes 1
Official- malignant neoplasm of oral cavity NOS (C06.9)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for C14 in this effective period.
Use Additional
Official- code to identify:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
Code Also
OfficialICD-10-CM does not list Code Also instructions for C14 in this effective period.
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
- Code
- C14
- Description
- Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- No
- Payment year
- 2026
Coder workflow notes
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What This Code Means
C14 is the ICD-10-CM diagnosis code for malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx. C14 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering malignant neoplasms of lip, oral cavity and pharynx (c00-c14).
Header codes like C14 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for C14 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Excludes 1, Do NOT code together
- malignant neoplasm of oral cavity NOS (C06.9)
Use Additional Code
- code to identify:
- alcohol abuse and dependence (F10.-)
- 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)