ICD-10 Code K64.0 – First degree hemorrhoids (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K64.0 – First degree hemorrhoids
What it is
K64.0 identifies first-degree hemorrhoids, meaning internal hemorrhoids that remain inside the anal canal and do not prolapse outside the anus. Use this code when documentation specifically states first degree.
Clinical signs
Clinical features commonly include painless rectal bleeding and mild anorectal discomfort. Clinical features vary; refer to documentation, especially if the note describes prolapse, thrombosis, or external hemorrhoids.
When to use this code
Use K64.0 when the provider documents first-degree internal hemorrhoids, often based on exam or anoscopy findings. It may also fit when the record clearly states hemorrhoids without prolapse and specifies the degree. Check documentation if the degree is not recorded.
Do not use for
Do not use this code for second-, third-, or fourth-degree hemorrhoids, or for external hemorrhoids. If the documentation is nonspecific or conflicting, check documentation before assigning K64.0.
Coding tip
Code the documented degree exactly; if the degree is missing, query or use the unspecified hemorrhoid code only when supported.