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Home/Diagnosis/ICD-10 Coding for Perforated Diverticulitis

ICD-10 Coding for Perforated Diverticulitis

K57.20
K57.21

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

Also Known as:
Diverticulitis with Perforation
Perforated Diverticular Disease
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Key Information: ICD-10 Coding for Perforated Diverticulitis

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

Use ICD-10 code K57.20 for diverticulitis of large intestine with perforation and abscess without bleeding, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Diverticulitis of large intestine with perforation and abscess without bleeding

Billable Code
K57.20
Billable

Diagnostic Criteria

clinical:
  • • CT findings of perforation and abscess
documentation:
  • • Explicit mention of perforation and abscess in clinical notes

Applicable To

  • • Perforated diverticulitis of sigmoid colon

Important Notes

  • • Ensure documentation specifies perforation and abscess to avoid incorrect coding.

Diverticulitis of large intestine with perforation and abscess with bleeding

Billable Code
K57.21
Billable

Diagnostic Criteria

clinical:
  • • CT showing perforation, abscess, and evidence of bleeding
  • • Drop in hemoglobin ≥2 g/dL

Applicable To

  • • Perforated diverticulitis with bleeding

Important Notes

  • • Ensure bleeding is documented to use this code.
Ancillary Codes

Additional codes that may be used with this diagnosis

K65.1

Intra-abdominal abscess

Use when abscess extends beyond the bowel wall.

Frequently Asked Questions

What is the ICD-10 code for perforated diverticulitis?

The ICD-10 code for perforated diverticulitis of the large intestine without bleeding is K57.20. If bleeding is present, use K57.21.

How do you code diverticulitis with an abscess?

Use K57.20 for diverticulitis with perforation and abscess without bleeding. Add K65.1 if the abscess extends beyond the bowel wall.

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