1. ICD-10-CM Codes
›
2. K00-K95
›
3. K65-K68
›
4. K65-
›
5. 2023 ICD-10-CM Diagnosis Code K65.1

2023 ICD-10-CM Diagnosis Code K65.1

Peritoneal abscess

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• K65.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM K65.1 became effective on October 1, 2022.
• This is the American ICD-10-CM version of K65.1 - other international versions of ICD-10 K65.1 may differ.

• Abdominal abscess
• Abdominopelvic abscess
• Abscess of omentum
• Abscess of peritoneum
• Abscess, abdominal
• Abscess, abdominal- pelvic
• Abscess, mesenteric
• Abscess, mid-abdominal
• Abscess, omentum
• Abscess, peritoneal
• Abscess, retrocecal
• Abscess, subdiaphragmatic (under diaphragm)
• Abscess, subhepatic (under liver)
• Acute male pelvic abscess
• Acute male pelvis abscess
• Intra abdominal abscess after procedure
• Mesenteric abscess
• Midabdominal abscess
• Postprocedural intraabdominal abscess
• Postprocedural subphrenic abscess
• Retrocecal abscess
• Subdiaphragmatic abscess
• Subhepatic abscess
• Subphrenic abscess after procedure

• Accumulation of purulent exudates beneath the diaphragm, also known as upper abdominal abscess. It is usually associated with peritonitis or postoperative infections.

• 371 Major gastrointestinal disorders and peritoneal infections with mcc
• 372 Major gastrointestinal disorders and peritoneal infections with cc
• 373 Major gastrointestinal disorders and peritoneal infections without cc/mcc
• 791 Prematurity with major problems
• 793 Full term neonate with major problems

Convert K65.1 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
  ICD-10-CM Diagnosis Code L02.91

  Cutaneous abscess, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • abdomen, abdominal
    • cavity K65.1
  • intra-abdominal K65.1 - see also Abscess, peritoneum
  • pelvis, pelvic
    • male, peritoneal K65.1
  • peritoneum, peritoneal (perforated) (ruptured) K65.1
    • pelvic
      • male K65.1
  • subphrenic K65.1
  • abdominopelvic K65.1
  • diaphragm, diaphragmatic K65.1
  • epiploon, epiploic K65.1
  • intraperitoneal K65.1
  • mesentery, mesenteric K65.1
  • omentum K65.1
  • retrocecal K65.1
  • subdiaphragmatic K65.1
  • subhepatic K65.1
• Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion) K65.9
  ICD-10-CM Diagnosis Code K65.9

  Peritonitis, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Bacterial peritonitis NOS
  • with or following
    • abscess K65.1
• Sepsis (generalized) (unspecified organism) A41.9
  ICD-10-CM Diagnosis Code A41.9

  Sepsis, unspecified organism

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Septicemia NOS
  • intra-abdominal K65.1

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.