ICD10BillableValid for clinical use

ICD-10 Code K66.0: Peritoneal adhesions (postprocedural) (postinfection)

K66.0 is a billable ICD-10 diagnosis code used to classify Peritoneal adhesions (postprocedural) (postinfection) in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the digestive system (K00-K95).

When is it used?

  • May be used when a clinician documents peritoneal adhesions (postprocedural) (postinfection) in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
11Diseases of the digestive system (K00-K95)
block
K65-K68Diseases of peritoneum and retroperitoneum
category
K66Other disorders of peritoneum
currentK66

Official coding notes

Inclusion terms
  • Adhesions (of) abdominal (wall)
  • Adhesions (of) diaphragm
  • Adhesions (of) intestine
  • Adhesions (of) male pelvis
  • Adhesions (of) omentum
  • Adhesions (of) stomach
  • Adhesive bands
  • Mesenteric adhesions
Excludes1 (do not code together)
  • peritoneal adhesions with intestinal obstruction (K56.5-)
Excludes2 (may code together if documented)
  • female pelvic adhesions [bands] (N73.6)
  • female pelvic postprocedural adhesions (N99.4)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

GastroenterologistGeneral PhysicianInfectious Disease Specialist

Coverage-related procedures and services

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
K66.0

Common synonyms

Peritoneal adhesions (postprocedural) (postinfection)Peritoneal adhesionsPeritoneal adhesions postprocedural postinfection

Frequently asked questions

Code details

CodeK66.0
SystemICD10
Display namePeritoneal adhesions (postprocedural) (postinfection)
ChapterDiseases of the digestive system (K00-K95)
BlockDiseases of peritoneum and retroperitoneum

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Adhesions, adhesive(postinfective)Adhesions, adhesive(postinfective)Adhesions, adhesive(postinfective)Adhesions, adhesive(postinfective)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code K66.0 for Peritoneal adhesions (postprocedural) (postinfection) | HealthAssure