ICD-10 Coding for Non-Anion Gap Metabolic Acidosis(E87.21, E87.22, N25.89)
Complete ICD-10-CM coding and documentation guide for Non-Anion Gap Metabolic Acidosis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Non-Anion Gap Metabolic Acidosis
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| E87.21 | Acute metabolic acidosis | Use for acute NAGMA episodes, such as those induced by diarrhea resolving within 48 hours. |
|
| E87.22 | Chronic metabolic acidosis | Apply for persistent NAGMA, such as chronic renal tubular acidosis. |
|
| N25.89 | Other disorders resulting from impaired renal tubular function | Specific to Type IV RTA with hyperkalemia. |
|
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 NAGMA
Essential facts and insights about Non-Anion Gap Metabolic Acidosis
Primary ICD-10-CM Codes for nagma
Decision Criteria
clinical Criteria
- Presence of acute symptoms and lab findings
Applicable To
- Acute NAGMA episodes
Excludes
- Chronic metabolic acidosis (E87.22)
Clinical Validation Requirements
- Serum bicarbonate <22 mM
- Normal anion gap (8-12 mEq/L)
Code-Specific Risks
- Risk of using unspecified codes if acute nature is not documented.
Coding Notes
- Ensure documentation specifies acute nature to avoid unspecified coding.
E87.22 - Chronic metabolic acidosis
Apply for persistent NAGMA, such as chronic renal tubular acidosis.
Applicable To
- Chronic NAGMA
Excludes
- Acute metabolic acidosis (E87.21)
Clinical Validation Requirements
- Persistent serum bicarbonate <22 mM
- Normal anion gap over extended period
Coding Notes
Chronicity must be clearly documented.
N25.89 - Other disorders resulting from impaired renal tubular function
Specific to Type IV RTA with hyperkalemia.
Applicable To
- Type IV renal tubular acidosis
Excludes
- Other specified disorders of kidney and ureter (N25.8)
Clinical Validation Requirements
- Hyperkalemia
- Urine pH <5.5
Coding Notes
Document renal tubular dysfunction clearly.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Non-Anion Gap Metabolic Acidosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code E87.21.
Impact
Clinical: May lead to misdiagnosis or inappropriate treatment., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims or reduced reimbursement.
Mitigation Strategy
Ensure all lab values are documented in the patient's chart., Use templates to guide comprehensive documentation.
Impact
Reimbursement: May lead to lower reimbursement rates., Compliance: Non-compliance with specificity requirements., Data Quality: Decreases accuracy of clinical data.
Mitigation Strategy
Ensure documentation specifies acute or chronic nature to use E87.21 or E87.22.
Impact
Risk of audits due to use of unspecified codes.
Mitigation Strategy
Use specific codes E87.21 or E87.22 based on documentation.
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 Non-Anion Gap Metabolic Acidosis, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Non-Anion Gap Metabolic Acidosis
Use these documentation templates to ensure complete and accurate documentation for Non-Anion Gap Metabolic Acidosis. These templates include all required elements for proper coding and billing.
Chronic NAGMA with Type IV RTA
Specialty: NephrologyRequired Elements
- Serum bicarbonate levels
- Anion gap calculation
- Urine pH
- Potassium levels
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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