K60.311 – Anal fistula, simple, initial

ICD-10-CM 2027 diagnosis code · Other diseases of intestines

Billable code

ICD-10-CM code K60.311

Code: K60.311 (claims format: K60311)
Description: Anal fistula, simple, initial
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 11. Diseases of the digestive system (K00-K95)
Block: K55-K64 Other diseases of intestines
Parent codes: K60 › K60.3 › K60.31

Notes for K60.311

Applicable to:

Anal fistula, simple, new

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

K60 – Fissure and fistula of anal and rectal regions

Excludes2 (not included here):

abscess or cellulitis of anal and rectal regions (K61.-)
anal sphincter tear (healed) (nontraumatic) (old) (K62.81)

K60.3 – Anal fistula

Excludes1 (not coded here):

congenital fistula (Q43.6)

Code first:

, if applicable:
Crohn's disease (K50.-)
ulcerative colitis (K51.-)

K60.31 – Anal fistula, simple

Applicable to:

Low intersphincteric anal fistula
Superficial anal fistula

Index terms for K60.311

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in K60.31

K60.312 – Anal fistula, simple, persistentBillable
K60.313 – Anal fistula, simple, recurrentBillable
K60.319 – Anal fistula, simple, unspecifiedBillable

Frequently asked questions

What is ICD-10 code K60.311?

K60.311 is the ICD-10-CM code for anal fistula, simple, initial, in the block K55-K64 (Other diseases of intestines).

Is K60.311 a billable code?

Yes. K60.311 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does K60.311 belong to?

It belongs to category K60 – Fissure and fistula of anal and rectal regions.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.