K66
Header — not billableOther disorders of peritoneum
The ICD-10 code for other disorders of peritoneum is K66.
K66 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Clinical notes
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K65Peritonitisnon-billable header
- K67Disorders of peritoneum in infectious diseases classified elsewhere
- K68Disorders of retroperitoneumnon-billable header
- K66Other disorders of peritoneumnon-billable header