Diverticulitis ICD-10-CM Codes

Read this short guide and learn about diverticulitis ICD codes you can use.

By Chloe Smith on Feb 29, 2024.

Fact Checked by Ericka Pingol.

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Diverticulitis ICD-10-CM Codes

What diverticulitis ICD codes can I use?

There are a number of diverticulitis ICD codes you can use. Here are eight examples of diverticulitis-related ICD-10 codes you can use:

  1. K57.00 - Diverticulitis of small intestine with perforation and abscess without bleeding

This ICD-10 code is meant to be used on a patient confirmed to have diverticulitis, specifically of their small intestines. They also have perforation (tears in the colon walls) and abscess (pus build-up), but no bleeding.

  1. K57.01 - Diverticulitis of small intestine with perforation and abscess with bleeding

This is similar to Item 1, but this time, there is bleeding.

  1. K57.12 - Diverticulitis of small intestine without perforation or abscess without bleeding

This is similar to Item 1, but this time, there is no perforation or abscess and no bleeding.

  1. K57.13 - Diverticulitis of small intestine without perforation or abscess with bleeding

This is similar to Item 3, but this time, there is bleeding.

  1. K57.20 - Diverticulitis of large intestine with perforation and abscess without bleeding

This is similar to Item 1, but this time, the diverticulitis is of the large intestines.

  1. K57.21 - Diverticulitis of large intestine with perforation and abscess with bleeding

This is similar to Item 5, but this time, there is bleeding.

  1. K57.32 - Diverticulitis of large intestine without perforation or abscess without bleeding

This is similar to Item 5, but this time, there is no perforation or abscess, and no bleeding.

  1. K57.33 - Diverticulitis of large intestine without perforation or abscess with bleeding

This is similar to Item 7, but this time, there is bleeding.

There are more diverticulitis ICD codes. Some of them are for both intestines, and some of them are for unspecified intestines.

Are these diverticulitis ICD codes billable?

Yes. All the aforementioned diverticulitis-related ICD-10 codes are valid and billable. As for those we mentioned in passing, most of them are valid and billable.

Clinical information about diverticulitis:

Diverticula are pockets that can develop inside the colon, a condition known as diverticulosis. While it's common for these pockets to form as people age, they typically don't cause any problems. However, when these pockets become infected and inflamed, it leads to diverticulitis, which can cause acute or chronic pain. Fortunately, diverticulitis is generally treatable and can be easily healed. However, in some cases, complications such as scarring, perforations, or the development of abscesses may occur.

A person with diverticulitis will likely have the following symptoms:

  • They will feel severe pain in their abdomen
  • They will likely become constipated or have diarrhea
  • They will bleed from their rectum (which can also be the result of constipation)
  • They will have fevers or feel feverish, and they will feel nauseated and sometimes vomit

Synonyms include:

  • Diverticulitis of duodenum
  • Diverticulitis of ileum
  • Diverticulitis of jejunum
  • Diverticulitis of jejunum with perforation
  • Diverticulitis of small intestine with perforation and abscess
  • Hemorrhage of small intestine due to diverticulitis
  • Diverticulitis of large intestine with complication
  • Diverticulitis of cecum
  • Diverticulitis of colon
  • Diverticulitis of colon with perforation
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Commonly asked questions

Are there any unbillable diverticulitis ICD codes?

Yes, but we don’t recommend using those because they are likely invalid.

Besides perforations and abscesses, what are other complications that can result from diverticulitis?

A person with diverticulitis might develop gastrointestinal perforations and bleeding, blockages/obstructions in the intestinal tract, and fistulas.

How is diverticulitis treated?

Healthcare professionals will likely prescribe antibiotics. Acetaminophen is also recommended because it can deal with pain and reduces the risk of gastrointestinal bleeding. A liquid diet may also be recommended because solid food might aggravate diverticulitis.

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