2024 ICD-10-CM Diagnosis Code K65.4

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Aseptic peritonitis
• Fat necrosis of peritoneum
• Fat necrosis of peritoneum
• Injury of omentum
• Mesenteric fat necrosis
• Mesenteric fat necrosis
• Mesenteric peritonitis with mesenteric fat necrosis
• Omental fat necrosis
• Retractile mesenteritis
• Sclerosing mesenteritis
• Sclerosing peritonitis
• Serositis
• Serositis

Clinical Information

• Serositis

  inflammation of a serous membrane.

• Ovarian Luteinized Thecoma Associated with Sclerosing Peritonitis

  a rare usually bilateral luteinized thecoma that arises from the ovary and is associated with sclerosing peritonitis. it occurs mostly in premenopausal women. the ovarian tumor is benign but patients may develop intestinal obstruction due to the sclerosing peritonitis.

• Sclerosing Peritonitis

  a rare peritoneal cavity disorder that is characterized by the development of dense fibrous tissue in the peritoneum and the creation of severe adhesions in the abdomen that result in partial or complete small bowel obstruction. it may be idiopathic or develop in patients who receive peritoneal dialysis treatment. patients present with abdominal distention and pain.

K65.4 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert K65.4 to ICD-9-CM

• ICD-9-CM Code: 567.82 - Sclerosing mesenteritis

Patient Education

Peritoneal Disorders

Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen. A liquid, peritoneal fluid, lubricates the surface of this tissue.

Disorders of the peritoneum are not common. They include:

• Peritonitis - an inflammation of the peritoneum
• Cancer
• Complications from peritoneal dialysis

Your doctor may use imaging tests or lab tests to analyze the peritoneal fluid to diagnose the problem. Treatment of peritoneal disorders depends on the cause.

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.