K64.0 First degree hemorrhoids

Billable ICD-10-CM code, FY2026.

Applicable to

• Grade/stage I hemorrhoids
• Hemorrhoids (bleeding) without prolapse outside of anal canal

Applies from K64 Hemorrhoids and perianal venous thrombosis

Includes

• piles

Excludes1 (never code together)

• hemorrhoids complicating childbirth and the puerperium (O87.2)
• hemorrhoids complicating pregnancy (O22.4)

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 455.0 Internal hemorrhoids without mention of complication (approximate)
• 455.1 Internal thrombosed hemorrhoids (approximate)
• 455.2 Internal hemorrhoids with other complication (approximate)
• 455.5 External hemorrhoids with other complication (approximate)
• 455.6 Unspecified hemorrhoids without mention of complication (approximate)
• 455.7 Unspecified thrombosed hemorrhoids (approximate)

Code annotations containing back-references to K64.0

Back-references to K64

• Type 2 Excludes: K62 Other diseases of anus and rectum ("hemorrhoids (K64.-)")

Diagnosis Index entries for K64.0

• Hemorrhoids (bleeding) (without mention of degree) › 1st degree (grade/stage I) (without prolapse outside of anal canal)

Nearby codes

• K64 Hemorrhoids and perianal venous thrombosis
• K64.0 First degree hemorrhoids (this code)
• K64.1 Second degree hemorrhoids
• K64.2 Third degree hemorrhoids
• K64.3 Fourth degree hemorrhoids
• K64.4 Residual hemorrhoidal skin tags
• K64.5 Perianal venous thrombosis