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What is the correct code for an acute appendicitis with localized peritonitis?

Author

Christopher Snyder

Updated on February 24, 2026

What is the correct code for an acute appendicitis with localized peritonitis?

K35.30

Beside this, what is the correct ICD 10 CM code for acute appendicitis with peritoneal abscess?

K35.33

Also Know, what is the ICD 10 code for acute appendicitis? K35.32

Then, what is localized peritonitis?

Peritonitis is inflammation of the peritoneum — a silk-like membrane that lines your inner abdominal wall and covers the organs within your abdomen — that is usually due to a bacterial or fungal infection.

What is acute appendicitis with Serositis?

Serosal appendicitis may be defined as an inflammatory reaction on the surface of the appendix caused by an extra-appendiceal source of inflammation. It is a pathological diagnosis that is rarely encountered in surgical practice.

What is the main term for the diagnosis of acute appendicitis with gangrene and rupture?

2021 ICD-10-CM Diagnosis Code K35. 31: Acute appendicitis with localized peritonitis and gangrene, without perforation.

What does Appendicolith mean?

Appendicolith is a conglomeration of firm feces with some mineral deposits. It is usually found accidentally in abdominal computed tomography (CT) without any signs of appendicitis.

What is the definition of peritonitis?

Inflammation of the peritoneum (tissue that lines the abdominal wall and covers most of the organs in the abdomen). Peritonitis can result from infection, injury, or certain diseases.

Is the Appendix part of the digestive system?

Front View of the Appendix

The appendix sits at the junction of the small intestine and large intestine. It's a thin tube about four inches long. Normally, the appendix sits in the lower right abdomen. The function of the appendix is unknown.

What is catarrhal appendicitis?

In catarrhal appendicitis, the wall of the appendix consists of three layers. In phlegmonous appendicitis, these layers become unclear, and in gangrenous appendicitis, the layered structure is lost. CT is superior to ultrasonography in objectivity, but is unable to depict the layers of the appendiceal wall.

What is Periappendiceal abscess?

Periappendiceal abscess (PAA) is a severe complicated appendicitis with high morbidity. Non-surgical treatment followed by interval appendectomy (IA) is associated with lower complication rate compared with emergency surgery (ES) and minimally invasive surgery (MIS) can be done more often.

What is ICD 10 code i10?

ICD-10 Code: I10 – Essential (Primary) Hypertension

ICD-Code I10 is a billable ICD-10 code used for healthcare diagnosis reimbursement of Essential (Primary) Hypertension. Its corresponding ICD-9 code is 401.

How long does it take to recover from peritonitis?

If you're diagnosed with peritonitis, you'll need treatment in hospital to get rid of the infection. This might take 10 to 14 days. Treatment usually involves being given antibiotics into a vein (intravenously).

What are three causes of peritonitis?

What causes peritonitis?
  • an abdominal wound or injury.
  • a ruptured appendix.
  • a stomach ulcer.
  • a perforated colon.
  • diverticulitis.
  • pancreatitis, or inflammation of the pancreas.
  • cirrhosis of the liver or other types of liver disease.
  • infection of the gallbladder, intestines, or bloodstream.

Will a CT scan show peritonitis?

Main points. Acute peritonitis presents with nonspecific clinical and laboratory features. To date multidetector CT represents the best imaging modality to evaluate patients with acute abdominal pain. In this setting, radiologists should be aware of CT findings indicative of acute peritoneal diseases.

How do you get peritonitis?

Peritonitis is caused by an infection. Bacteria can enter the lining of your belly from a hole in your GI (gastrointestinal) tract. This can happen if you have a hole in your colon or a burst appendix.

What is the difference between peritonitis and sepsis?

Peritonitis may be more difficult because the medical team frequently needs to collect a sample of the fluid from the abdominal cavity, whereas sepsis typically requires only a blood draw. Both conditions can be fatal if left untreated.

What antibiotic is used for peritonitis?

Antibiotics recommended in this setting include moxifloxacin, a combination of metronidazole with either levofloxacin or an oral cephalosporin, or amoxicillin-clavulanate. These oral agents can also be used for those who are treated in the outpatient setting but were initiated on inpatient IV therapy.

Can you have peritonitis without a fever?

Episodes of peritonitis without fever and abdominal pain were considered to be silent peritonitis. Episodes of peritonitis with various extents of fever and abdominal pain were considered non-silent peritonitis.

What organs are affected by peritonitis?

Peritonitis is inflammation of the membranes of the abdominal wall and organs. Peritonitis is a life-threatening emergency that needs prompt medical treatment. The abdominal organs, such as the stomach and liver, are wrapped in a thin, tough membrane called the visceral peritoneum.

What is the difference between localized and generalized peritonitis?

Local peritonitis refers to loculi of infection, usually walled-off or contained by adjacent organs, whereas diffuse is synonymous with generalized peritonitis, that is spread to the entire cavity.

What is the CPT code for acute appendicitis?

There are 5 codes that can be used to report an appendectomy: 44950 Appendectomy; 44955 Appendectomy; when done for indicated purpose at time of other major procedure (not as separate procedure) 44960 Appendectomy; for ruptured appendix with abscess or generalized peritonitis.

What is the ICD 10 code for Periumbilical hernia?

Valid for Submission
ICD-10:K42.9
Short Description:Umbilical hernia without obstruction or gangrene
Long Description:Umbilical hernia without obstruction or gangrene

What are the correct diagnosis and procedure codes for an open appendectomy for chronic appendicitis?

CPT codes 44950 and 44960 are used for open primary appendectomies. Code – 44960 is used only for an appendix that has perforated or ruptured, and/or for diffuse peritonitis.

What is the CPT code for appendectomy?

Two codes differentiate an open appendectomy without rupture (44950) and with rupture (44960). However, only one code applies to laparoscopic appendectomy (44970), and it is used to report a laparoscopic appendectomy for either scenario; with rupture or without rupture (see Table 2, page 43).

What is diagnosis code r50 9?

ICD-10 code R50. 9 for Fever, unspecified is a medical classification as listed by WHO under the range - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified .

What is the ICD 10 code for abdominal pain?

R10. 9 - Unspecified abdominal pain. ICD-10-CM.

How does acute appendicitis usually develop?

A blockage in the lining of the appendix that results in infection is the likely cause of appendicitis. The bacteria multiply rapidly, causing the appendix to become inflamed, swollen and filled with pus. If not treated promptly, the appendix can rupture.

Why appendicitis is more common in males than females?

Conclusion : The increasing incidence of appendicitis in both sexes in this region may be due to the change to a Western lifestyle. The age distribution has a similar pattern in both sexes and 87% are 40 years or less, although the incidence is marginally higher in males.

What is the pathogenesis of acute appendicitis?

Appendicitis is thought to result from obstruction of the appendiceal lumen, typically by lymphoid hyperplasia but occasionally by a fecalith, foreign body, or even worms. The obstruction leads to distention, bacterial overgrowth, ischemia, and inflammation. If untreated, necrosis, gangrene, and perforation occur.

What is acute suppurative appendicitis?

Suppurative appendicitis has traditionally been considered a later stage of appendicitis, in which bacteria and inflammatory fluids accumulated in the lumen of the appendix enter the wall of structure and subsequently cause intense pain when the inflamed membrane rubs against the parietal peritoneum lining the

Is pleurisy an autoimmune disease?

Various autoimmune diseases, like systemic lupus erythematosus (SLE or lupus) and rheumatoid arthritis, can cause pleurisy.

Does appendix have Serosa?

The appendix is contained within the visceral peritoneum that forms the serosa, and its exterior layer is longitudinal and derived from the taenia coli; the deeper, interior muscle layer is circular. Beneath these layers lies the submucosal layer, which contains lymphoepithelial tissue.

What means inflammation of a membrane?

Inflammation of this membrane is called peritonitis. The main symptom of peritonitis is severe abdominal pain.

What does Serositis mean?

Glossary: Serositis

An inflammation of a serous membrane, such as the pleura, pericardium, or peritoneum. Serositis is one of the cardinal findings in connective tissue diseases like systemic lupus erythematosus.

What is lupus chest pain like?

Pericarditis. The most common way that lupus affects the heart is through inflammation of the pericardium, the sac that surrounds your heart. The symptoms of pericarditis that you may experience are sharp pain in your chest and occasionally, shortness of breath.