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ICD Hub / Certain infectious or parasitic diseases (A00–B99) / 1A07.0 - Typhoid peritonitis
ICD-11

ICD-11 Codes
for 1A07.0 - Typhoid peritonitis
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Typhoid Peritonitis

Typhoid peritonitis, identified by the ICD-11 code **1A07.0**, refers to a serious complication of typhoid fever. It involves inflammation of the peritoneum, the thin membrane that lines the inside of the abdomen and covers most of the abdominal organs. This condition arises when the bacterium *Salmonella typhi*, the causative agent of typhoid fever, leads to a perforation in the intestinal wall, allowing bacteria and intestinal contents to leak into the abdominal cavity.

Causes and Risk Factors

The primary cause of typhoid peritonitis is infection with the gram-negative bacterium *Salmonella typhi*. While typhoid fever itself is transmitted through the faecal-oral route via contaminated food or water, peritonitis is a severe consequence that typically develops in cases of advanced or untreated typhoid fever. A significant risk factor is intestinal perforation, a known complication of typhoid fever where the intestinal wall is breached, leading to leakage into the peritoneal cavity.

Recognising the Symptoms

The presentation of typhoid peritonitis combines symptoms of typhoid fever with those of acute peritonitis. Initial symptoms may include high fever, weakness, abdominal pain, headache, and loss of appetite, characteristic of typhoid fever. As peritonitis develops, patients often experience severe, generalised abdominal pain, extreme tenderness to touch, abdominal rigidity (a board-like abdomen), nausea, vomiting, and a worsening fever.

How is it Diagnosed?

Diagnosing typhoid peritonitis involves a multi-faceted approach. Confirmation of *Salmonella typhi* infection is typically achieved through laboratory identification in faecal or blood samples. For the peritonitis component, clinical assessment is crucial, noting signs of severe abdominal inflammation. Diagnostic imaging, such as a CT scan of the abdomen, can help identify fluid accumulation, inflammation, and potential intestinal perforations. Blood tests may also reveal signs of infection and inflammation.

Treatment and Management Considerations

Typhoid peritonitis is a medical emergency requiring prompt intervention. Management typically involves a combination of treatments. Antibiotics are essential to combat the *Salmonella typhi* infection. If intestinal perforation has occurred, surgical intervention is usually necessary to repair the damaged bowel and to cleanse the abdominal cavity of infectious material. Supportive care, including fluid and electrolyte management, is also critical.

Documentation and Coding for Typhoid Peritonitis

For medical billing and record-keeping, the specific ICD-11 code for Typhoid peritonitis is **1A07.0**. This code is used to accurately document this complication. When coding, it is important to distinguish it from the general condition of typhoid fever (ICD-11 code **1A07**). Accurate documentation is vital for patient care, statistical reporting, and insurance claims, ensuring the specific diagnosis of peritonitis secondary to typhoid fever is captured.

Frequently asked questions

What is the ICD-11 classification and definition for Typhoid peritonitis?
Typhoid peritonitis is classified under ICD-11 code 1A07.0. It is defined as peritonitis caused by Salmonella typhi.
How is Typhoid peritonitis categorized within the ICD-11 classification system?
Typhoid peritonitis (1A07.0) is a specific manifestation or sub-category under the broader ICD-11 classification of Typhoid fever (1A07).
How is Typhoid peritonitis coded in ICD-11, and can it be further specified?
Typhoid peritonitis is coded as 1A07.0. ICD-11 supports post-coordination, allowing for the addition of stem and/or extension codes to the base code to provide greater detail.
How does coding Typhoid peritonitis (1A07.0) differ from coding a general Typhoid fever code in ICD-11?
Code 1A07.0 is used when peritonitis is the documented condition associated with typhoid fever. A more general code, such as 1A07.Z (Typhoid fever, unspecified), is used when the specific manifestation is not documented.
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