Back to HomeBeta

ICD-10 Coding for Gastroenterocolitis(A09, K52.0, K52.1)

Complete ICD-10-CM coding and documentation guide for Gastroenterocolitis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Infectious gastroenteritisToxic gastroenteritisRadiation-induced gastroenteritis

Related ICD-10 Code Ranges

Complete code families applicable to Gastroenterocolitis

A00-A09Primary Range

Intestinal infectious diseases

This range includes codes for infectious gastroenteritis, which is a primary category for gastroenterocolitis.

Other and unspecified noninfective gastroenteritis and colitis

This range includes codes for noninfective causes of gastroenterocolitis, such as radiation and toxic agents.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
A09Infectious gastroenteritis and colitis, unspecifiedUse when the infectious cause is unspecified or not documented.
  • ≥3 loose stools/24hrs
  • Negative C. difficile/Bacterial PCR
K52.0Gastroenteritis and colitis due to radiationUse for patients with recent radiation therapy.
  • Radiation exposure date
  • Anatomic field of radiation
K52.1Toxic gastroenteritis and colitisUse when a specific toxic agent is documented.
  • Identification of toxic agent
  • Temporal relationship with exposure

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for gastroenterocolitis

Essential facts and insights about Gastroenterocolitis

The ICD-10 code for unspecified infectious gastroenterocolitis is A09. For specific causes, use K52.0 for radiation-induced and K52.1 for toxic gastroenteritis.

Primary ICD-10-CM Codes for gastroenterocolitis

Infectious gastroenteritis and colitis, unspecified
Billable Code

Decision Criteria

clinical Criteria

  • Presence of ≥3 loose stools/24hrs

documentation Criteria

  • Negative stool culture for bacterial pathogens

Applicable To

  • Acute infectious gastroenterocolitis

Excludes

  • Bacterial foodborne intoxications (A05.-)

Clinical Validation Requirements

  • ≥3 loose stools/24hrs
  • Negative C. difficile/Bacterial PCR

Code-Specific Risks

  • Unspecified codes may lead to denials.

Coding Notes

  • Ensure documentation excludes bacterial causes.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Nausea and vomiting

R11.0
Use for persistent vomiting >24hrs.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Acute gastroenteropathy due to Norovirus

A08.11
Use when Norovirus is confirmed by PCR.

Toxic gastroenteritis and colitis

K52.1
Use when a toxic agent is identified.

Radiation-induced gastroenteritis

K52.0
Use when related to radiation therapy.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Gastroenterocolitis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code A09.

Impact

Clinical: Leads to inaccurate diagnosis representation., Regulatory: Increases risk of audit failures., Financial: May result in claim denials.

Mitigation Strategy

Ensure thorough documentation of symptoms and lab results., Query for specific infectious agents when possible.

Impact

Reimbursement: May lead to incorrect DRG assignment., Compliance: Violates coding guidelines., Data Quality: Results in inaccurate data capture.

Mitigation Strategy

Do not code symptoms like nausea and vomiting separately when coding A09.

Impact

High risk of audit for using unspecified codes without proper documentation.

Mitigation Strategy

Ensure all cases have detailed documentation or query for specificity.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Gastroenterocolitis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Gastroenterocolitis

Use these documentation templates to ensure complete and accurate documentation for Gastroenterocolitis. These templates include all required elements for proper coding and billing.

Emergency Department Note for Gastroenterocolitis

Specialty: Emergency Medicine

Required Elements

  • Onset and duration of symptoms
  • Stool frequency and consistency
  • Associated symptoms
  • Risk factors
  • Validation studies

Example Documentation

## Gastroenterocolitis H&P **Onset:** [Exact date/time] **Stool Frequency:** [Number/24hr] **Consistency:** Bristol Scale [Type 5-7] **Associated Symptoms:** ☐ Vomiting (frequency/duration) ☐ Fever ≥38°C (Y/N) ☐ Blood/mucus (Y/N) **Risk Factors:** ☐ Recent travel [location/dates] ☐ Outbreak contact [facility name] ☐ Immunosuppression [type] ☐ Radiation/Chemo [agent/dates] **Validation Studies:** □ Stool PCR: [Pathogen] □ CRP: [Value] mg/L □ Serum lactoferrin: [Value] μg/mL **Impression:** [ ] Infectious gastroenterocolitis (A09) [ ] Radiation-induced (K52.0) [ ] Toxic (K52.1) **Plan:** [ ] Oral rehydration protocol [ ] Antiemetics PRN [ ] Contact precautions

Examples: Poor vs. Good Documentation

Poor Documentation Example
Diarrhea and abdominal cramps
Good Documentation Example
Acute onset watery diarrhea (6 episodes/24hr), CRP 85 mg/L, norovirus PCR positive, no recent antibiotic exposure
Explanation
The good example provides specific symptom details, lab results, and excludes bacterial causes, supporting the use of A09.

Need help with ICD-10 coding for Gastroenterocolitis? Ask your questions below.

Ask about any ICD-10 CM code, or paste a medical note

We build tools for
clinician happiness.

Learn More at Freed.ai
Back to HomeBeta

Built by Freed

Try Freed for free for 7 days.

Learn more