C43.31
✓ Billable
Malignant melanoma of nose
ICD-10-CM · FY2026 · Neoplasms
Code
C43.31
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code C43.31?
ICD-10-CM code C43.31 represents Malignant melanoma of nose. It is a billable diagnosis code in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C43.31 billable?
Yes. C43.31 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is C43.31 in?
C43.31 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C43 category
C43
Malignant melanoma of skin
Non-billable
C43.0
Malignant melanoma of lip
Billable
C43.1
Malignant melanoma of eyelid, including canthus
Non-billable
C43.2
Malignant melanoma of ear and external auricular canal
Non-billable
C43.3
Malignant melanoma of other and unspecified parts of face
Non-billable
C43.4
Malignant melanoma of scalp and neck
Billable
C43.5
Malignant melanoma of trunk
Non-billable
C43.6
Malignant melanoma of upper limb, including shoulder
Non-billable
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