K56.0 Paralytic ileus

The ICD-10-CM code for Paralytic ileus is K56.0 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

11: Diseases of the digestive system (K00-K95)

Section

K55-K64: Other diseases of intestines (K55-K64)

Category K56

22 codes (16 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K56.0:

• Paralysis, paralytic (complete) (incomplete) › bowel, colon or intestine
• Ileus (bowel) (colon) (inhibitory) (intestine) › paralytic
• Ileus (bowel) (colon) (inhibitory) (intestine) › adynamic
• Paresis › bowel, colon or intestine
• Paralysis, paralytic (complete) (incomplete) › ileus
• Paralysis, paralytic (complete) (incomplete) › intestine
• Paralysis, paralytic (complete) (incomplete) › colon
• Ileus (bowel) (colon) (inhibitory) (intestine) › neurogenic

Inclusion Terms

• Paralysis of bowel
• Paralysis of colon
• Paralysis of intestine

U.S. Hospital Utilization

• An estimated 18,060 U.S. inpatient stays in 2023 included K56.0 among the documented diagnoses.
• 2,685 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)