K90-K95
Medium Complexity

Other diseases of the digestive system

Primary Specialty: Gastroenterology
Last Updated: 2025-09-09

ICD-10 Codes (72)

54 billable
14 category headers
K91
Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
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K91.0
Billable
Vomiting following gastrointestinal surgery
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K91.1
Billable
Postgastric surgery syndromes
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K91.2
Billable
Postsurgical malabsorption, not elsewhere classified
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K91.3
Postprocedural intestinal obstruction
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K91.30
Billable
Postprocedural intestinal obstruction, unspecified as to partial versus complete
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K91.31
Billable
Postprocedural partial intestinal obstruction
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K91.32
Billable
Postprocedural complete intestinal obstruction
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K91.5
Billable
Postcholecystectomy syndrome
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K91.6
Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure
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K91.61
Billable
Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedure
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K91.62
Billable
Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure
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K91.7
Accidental puncture and laceration of a digestive system organ or structure during a procedure
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K91.71
Billable
Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure
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K91.72
Billable
Accidental puncture and laceration of a digestive system organ or structure during other procedure
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K91.8
Other intraoperative and postprocedural complications and disorders of digestive system
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K91.81
Billable
Other intraoperative complications of digestive system
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K91.82
Billable
Postprocedural hepatic failure
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K91.83
Billable
Postprocedural hepatorenal syndrome
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K91.84
Postprocedural hemorrhage of a digestive system organ or structure following a procedure
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K91.840
Billable
Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure
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K91.841
Billable
Postprocedural hemorrhage of a digestive system organ or structure following other procedure
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K91.85
Complications of intestinal pouch
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K91.850
Billable
Pouchitis
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K91.858
Billable
Other complications of intestinal pouch
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K91.86
Billable
Retained cholelithiasis following cholecystectomy
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K91.87
Postprocedural hematoma and seroma of a digestive system organ or structure following a procedure
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K91.870
Billable
Postprocedural hematoma of a digestive system organ or structure following a digestive system procedure
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K91.871
Billable
Postprocedural hematoma of a digestive system organ or structure following other procedure
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K91.872
Billable
Postprocedural seroma of a digestive system organ or structure following a digestive system procedure
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K91.873
Billable
Postprocedural seroma of a digestive system organ or structure following other procedure
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K91.89
Billable
Other postprocedural complications and disorders of digestive system
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K92
Other diseases of digestive system
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K92.0
Billable
Hematemesis
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K92.1
Billable
Melena
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K92.2
Billable
Gastrointestinal hemorrhage, unspecified
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K92.8
Other specified diseases of the digestive system
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K92.81
Billable
Gastrointestinal mucositis (ulcerative)
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K92.89
Billable
Other specified diseases of the digestive system
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K92.9
Billable
Disease of digestive system, unspecified
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K94
Complications of artificial openings of the digestive system
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K94.0
Colostomy complications
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K94.00
Billable
Colostomy complication, unspecified
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K94.01
Billable
Colostomy hemorrhage
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K94.02
Billable
Colostomy infection
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K94.03
Billable
Colostomy malfunction
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K94.09
Billable
Other complications of colostomy
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K94.1
Enterostomy complications
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K94.10
Billable
Enterostomy complication, unspecified
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K94.11
Billable
Enterostomy hemorrhage
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K94.12
Billable
Enterostomy infection
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K94.13
Billable
Enterostomy malfunction
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K94.19
Billable
Other complications of enterostomy
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K94.2
Gastrostomy complications
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K94.20
Billable
Gastrostomy complication, unspecified
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K94.21
Billable
Gastrostomy hemorrhage
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K94.22
Billable
Gastrostomy infection
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K94.23
Billable
Gastrostomy malfunction
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K94.29
Billable
Other complications of gastrostomy
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K94.3
Esophagostomy complications
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K94.30
Billable
Esophagostomy complications, unspecified
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K94.31
Billable
Esophagostomy hemorrhage
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K94.32
Billable
Esophagostomy infection
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K94.33
Billable
Esophagostomy malfunction
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K94.39
Billable
Other complications of esophagostomy
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K95
Complications of bariatric procedures
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K95.0
Complications of gastric band procedure
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K95.01
Billable
Infection due to gastric band procedure
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K95.09
Billable
Other complications of gastric band procedure
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K95.8
Complications of other bariatric procedure
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K95.81
Billable
Infection due to other bariatric procedure
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K95.89
Billable
Other complications of other bariatric procedure
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Updates & Changes

FY 2026 Updates

Current Year

New Codes (1)

K50.919
Crohn's disease, unspecified, with perianal disease complications

Revised Codes (2)

K51.90
Ulcerative colitis, unspecified, without complications - updated endoscopic severity scoring
K50.90
Crohn's disease, unspecified, without complications - enhanced phenotyping

Deleted Codes

No codes deleted in this range for FY 2026

Historical Changes

  • •FY 2025: Routine maintenance updates with minor terminology clarifications
  • •FY 2024: Enhanced specificity requirements for certain code ranges
  • •FY 2023: Updated documentation guidelines for improved clarity

Upcoming Changes

  • •Proposed updates pending review by Coordination and Maintenance Committee
  • •Under consideration: Enhanced digital health integration codes

Implementation Guidance

  • •Review all FY 2026 updates for K90-K95 codes before implementation
  • •Always verify the most current codes in the ICD-10-CM manual
  • •Ensure clinical documentation supports the selected diagnosis codes
  • +3 more guidance items...

Range Overview

high priority

The ICD-10 category K90-K95 encompasses codes for other diseases of the digestive system. This broad range includes conditions such as intestinal malabsorption, disorders of the gallbladder, pancreas, and liver, and post-procedural disorders of the digestive system. These codes are used to document a variety of digestive system diseases not covered in other categories, making them essential for accurate medical coding in gastroenterology and related specialties.

Key Usage Points:

  • •Always code to the highest level of specificity available.
  • •Use combination codes when available to capture both the disease and its manifestations.
  • •Ensure the documentation supports the selected code.
  • •Use additional codes to identify any associated conditions or complications.
  • •Remember that post-procedural disorders should be coded as complications of the procedure.

Coding Guidelines

When to Use:

  • ✓When a patient presents with a digestive disorder not covered by other categories.
  • ✓When a patient has a post-procedural disorder of the digestive system.
  • ✓When a patient has a disorder of the gallbladder, pancreas, or liver.
  • ✓When a patient has intestinal malabsorption.

When NOT to Use:

  • ✗When the condition is better represented by another code.
  • ✗When the condition is an expected post-procedural outcome.
  • ✗When the condition is a direct result of trauma.
  • ✗When the condition is a congenital anomaly.

Code Exclusions

Always verify exclusions with the official ICD-10-CM guidelines and the patient's medical record.

Documentation Requirements

Documentation for codes in the K90-K95 range should include a detailed description of the patient's condition, including the etiology, anatomic site, and severity. Any associated conditions or complications should also be documented.

Clinical Information:

  • •Detailed description of the patient's condition
  • •Etiology of the condition
  • •Anatomic site of the condition
  • •Severity of the condition
  • •Any associated conditions or complications

Supporting Evidence:

  • •Clinical notes
  • •Laboratory results
  • •Imaging results
  • •Procedure reports
Good Documentation Example:

Patient presents with severe chronic pancreatitis due to long-term alcohol abuse. Imaging shows extensive damage to the pancreas.

Poor Documentation Example:

Patient has pancreatitis.

Common Documentation Errors:

  • âš Not documenting the etiology of the condition
  • âš Not documenting the severity of the condition
  • âš Not documenting any associated conditions or complications
  • âš Not using the highest level of specificity available

Range Statistics

Total Codes
54
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:11

Coding Complexity

Medium
Complexity Rating

The K90-K95 range is rated as medium complexity due to the need to code to the highest level of specificity, use combination codes, identify associated conditions or complications, and verify exclusions. These factors require a thorough understanding of the ICD-10-CM guidelines and the patient's medical record.

Key Factors:
  • â–¸The need to code to the highest level of specificity
  • â–¸The need to use combination codes to capture both the disease and its manifestations
  • â–¸The need to use additional codes to identify any associated conditions or complications
  • â–¸The need to verify exclusions with the official ICD-10-CM guidelines and the patient's medical record

Specialty Focus

The K90-K95 range is primarily used in gastroenterology and related specialties. These codes are used to document a variety of digestive system diseases, including intestinal malabsorption, disorders of the gallbladder, pancreas, and liver, and post-procedural disorders.

Primary Specialties:
Gastroenterology
60%
General Surgery
30%
Internal Medicine
10%
Clinical Scenarios:
  • • A patient presents with chronic pancreatitis due to long-term alcohol abuse.
  • • A patient has a post-procedural infection after a cholecystectomy.
  • • A patient has celiac disease, an intestinal malabsorption disorder.
  • • A patient has a disorder of the liver due to a drug reaction.

Resources & References

Resources for the K90-K95 range include the official ICD-10-CM guidelines, clinical reference sources, and educational materials.

Official Guidelines:

  • ICD-10-CM Official Guidelines for Coding and Reporting
  • American Health Information Management Association (AHIMA) Coding Clinic
  • Centers for Medicare & Medicaid Services (CMS) ICD-10-CM documentation

Clinical References:

  • American Gastroenterological Association (AGA) guidelines
  • American College of Gastroenterology (ACG) guidelines

Educational Materials:

  • AHIMA ICD-10-CM coding training
  • CMS ICD-10-CM training materials

Frequently Asked Questions

Can I use a K90-K95 code for a congenital anomaly of the digestive system?

No, congenital anomalies of the digestive system should be coded with a Q35-Q45 code.