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ICD-10 Guide
ICD-10 CodesK31.8

K31.8

Non-billable

Other specified diseases of stomach and duodenum

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 K31.8 is a used to indicate a diagnosis of other specified diseases of stomach and duodenum.

Key Diagnostic Point:

K31.8 refers to other specified diseases of the stomach and duodenum, which encompasses a variety of gastrointestinal conditions that do not fall under more specific categories. The stomach and duodenum are critical components of the digestive system, responsible for the initial stages of digestion. Conditions classified under K31.8 may include gastric outlet obstruction, specific types of gastritis, and other less common disorders that affect the stomach and duodenum. Clinical presentations can vary widely, including symptoms such as abdominal pain, nausea, vomiting, and changes in appetite or weight. Disease progression can lead to complications such as malnutrition or severe gastrointestinal distress if not properly managed. Diagnostic considerations typically involve a thorough patient history, physical examination, and may include imaging studies or endoscopy to visualize the gastrointestinal tract. Accurate diagnosis is crucial for determining appropriate treatment strategies, which may range from dietary modifications to surgical interventions, depending on the underlying condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misclassification of more specific conditions.
  • Documentation gaps may arise if the specific disease is not clearly stated.
  • Billing challenges can occur if the treatment provided does not align with the diagnosis.

Specialty Focus

Medical Specialties

Gastroenterology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Internal Medicine

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The clinical significance of K31.8 lies in its association with various gastrointestinal disorders that can significantly impact patient quality of life and nutritional status. Understanding the epidemiology of these conditions can help healthcare providers identify at-risk populations and implement preventive measures. Quality measures related to the management of these diseases can improve healthcare utilization patterns, leading to better patient outcomes and reduced healthcare costs.

ICD-9 vs ICD-10

The clinical significance of K31.8 lies in its association with various gastrointestinal disorders that can significantly impact patient quality of life and nutritional status. Understanding the epidemiology of these conditions can help healthcare providers identify at-risk populations and implement preventive measures. Quality measures related to the management of these diseases can improve healthcare utilization patterns, leading to better patient outcomes and reduced healthcare costs.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the services provided align with the diagnosis and that all documentation is complete and accurate. Common denials may arise from insufficient documentation or misclassification of the condition. It is essential to follow coding best practices, including using the most specific codes available and ensuring that all clinical evidence supports the diagnosis to avoid billing challenges.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by K31.8?

K31.8 includes conditions such as gastric outlet obstruction, specific types of gastritis, and other unspecified diseases affecting the stomach and duodenum that do not have a dedicated code.

When should K31.8 be used instead of related codes?

K31.8 should be used when the specific disease affecting the stomach or duodenum cannot be classified under more specific codes, ensuring that the documentation supports the diagnosis.

What documentation supports K31.8?

Documentation should include a detailed patient history, clinical findings, diagnostic imaging results, and any endoscopic findings that support the diagnosis of a specified disease of the stomach or duodenum.