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Home/Diagnosis/ICD-10 Coding for Perforated Appendicitis

ICD-10 Coding for Perforated Appendicitis

K35.33
K35.32
K35.2XX

Complete ICD-10-CM coding and documentation guide for icd-10 coding for perforated appendicitis includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Ruptured Appendix
Appendiceal Perforation
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Key Information: ICD-10 Coding for Perforated Appendicitis

Essential facts and insights about ICD-10 Coding for Perforated Appendicitis

Use ICD-10 code K35.33 for acute appendicitis with perforation, localized peritonitis, and abscess, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Acute appendicitis with perforation, localized peritonitis, and abscess

Billable Code
K35.33
Billable

Diagnostic Criteria

  • • Documentation must specify perforation, localized peritonitis, and abscess.

Applicable To

  • • Perforated appendicitis with localized peritonitis and abscess

Important Notes

  • • Ensure documentation specifies abscess presence for accurate coding.

Acute appendicitis with perforation and localized peritonitis, without abscess

Billable Code
K35.32
Billable

Diagnostic Criteria

  • • Use when documentation specifies perforation and localized peritonitis without abscess.

Applicable To

  • • Perforated appendicitis with localized peritonitis, no abscess

Important Notes

  • • Ensure documentation specifies absence of abscess.

Acute appendicitis with generalized peritonitis

Non-Billable
K35.2XX
Non-Billable

Diagnostic Criteria

  • • Use when documentation specifies generalized peritonitis.

Applicable To

  • • Appendicitis with diffuse peritoneal involvement

Important Notes

  • • Ensure documentation specifies generalized peritonitis.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z53.31

Laparoscopic converted to open procedure

Use if the procedure was converted from laparoscopic to open.

Frequently Asked Questions

What is the ICD-10 code for perforated appendicitis?

The ICD-10 code for perforated appendicitis with localized peritonitis and abscess is K35.33. If there is no abscess, use K35.32.

How do you code acute perforated appendicitis?

Code acute perforated appendicitis with localized peritonitis and abscess as K35.33. For generalized peritonitis, use K35.2XX.

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