K51.5
⚠ Non-billable
Left sided colitis
ICD-10-CM · FY2026 · Diseases of the Digestive System
Code
K51.5
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Diseases of the Digestive System
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 K51.5?
ICD-10-CM code K51.5 represents Left sided colitis. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.
Is K51.5 billable?
No. K51.5 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is K51.5 in?
K51.5 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.
Related codes in the K51 category
K51
Ulcerative colitis
Non-billable
K51.0
Ulcerative (chronic) pancolitis
Non-billable
K51.2
Ulcerative (chronic) proctitis
Non-billable
K51.3
Ulcerative (chronic) rectosigmoiditis
Non-billable
K51.4
Inflammatory polyps of colon
Non-billable
K51.8
Other ulcerative colitis
Non-billable
K51.9
Ulcerative colitis, unspecified
Non-billable
K51.00
Ulcerative (chronic) pancolitis without complications
Billable
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