K61.1
Billable

Rectal abscess

Billable / Specific Code

What is Rectal abscess?

ICD-10-CM K61.1 is the diagnosis code for Rectal abscess. This code falls under the section "Other diseases of intestines" within Chapter 11 — Diseases of the digestive system (K00-K95). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for K61.1

✅ This Code Includes

  • Perirectal abscess

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as K61.1. They are mutually exclusive:

  • ischiorectal abscess (K61.39)

ICD-10-CM Code Hierarchy

Understanding where K61.1 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is K61.1 a billable ICD-10-CM code?

Yes, K61.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does K61.1 mean?

K61.1 is the ICD-10-CM diagnosis code for "Rectal abscess". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of K61.1?

The parent code of K61.1 is K61 ("Abscess of anal and rectal regions"). K61.1 provides a more specific classification within this category.

What section is K61.1 in?

K61.1 is located in Section K55-K64 — "Other diseases of intestines" within Chapter 11 of the ICD-10-CM Tabular List.

When should I use K61.1?

Use K61.1 when the patients documented diagnosis matches "Rectal abscess" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Rectal abscess?

The ICD-10-CM code for Rectal abscess is K61.1.

Can K61.1 be used for primary diagnosis?

Yes, K61.1 can be used as a primary diagnosis code since it is billable and specific.

What chapter is K61.1 in?

K61.1 is in Chapter 11 of the ICD-10-CM Tabular List.

What conditions are excluded from K61.1?

Type 1 Excludes for K61.1 include: ischiorectal abscess (K61.39).

Is K61.1 valid for 2026?

Yes, K61.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousK61.0Anal abscessNext →K61.2Anorectal abscess
Code Details
K61.1
Rectal abscess
Billable / Specific Code
11 — Diseases of the digestive system (K00-K95)
K55-K64 — Other diseases of intestines
2026 ICD-10-CM