K37

Billable

Unspecified appendicitis

K37 is the ICD-10-CM code for Unspecified appendicitis. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
K00-K95
Edition
FY2026

K00-K95 Diseases of the digestive system

Excludes1 — not coded here

  • unspecified appendicitis with peritonitis (K35.2-, K35.3-)

Frequently asked questions

What is ICD-10 code K37?
K37 is the ICD-10-CM code for "Unspecified appendicitis". It falls under K00-K95 Diseases of the digestive system.
Is K37 a billable code?
Yes — K37 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from K37?
Excludes1 (not coded here): unspecified appendicitis with peritonitis (K35.2-, K35.3-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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