ICD-10 Coding for Chronic Kidney Disease Stage 3b(N18.32)
Complete ICD-10-CM coding and documentation guide for Chronic Kidney Disease Stage 3b. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Chronic Kidney Disease Stage 3b
N18.30-N18.32Primary Range
Chronic kidney disease, stage 3
This range includes specific codes for CKD stages 3a and 3b, which are critical for accurate diagnosis and treatment planning.
Hypertensive heart and chronic kidney disease
Used when CKD is present with hypertension and heart disease, indicating a combination of conditions.
Type 2 diabetes mellitus with diabetic chronic kidney disease
Used when CKD is caused by diabetes, requiring diabetes to be coded first.
Key Information: ICD-10 code for CKD stage 3b
Essential facts and insights about Chronic Kidney Disease Stage 3b
Primary ICD-10-CM Code for chronic kidney disease 3b
Decision Criteria
clinical Criteria
- Documented GFR between 30-44 for at least three months
documentation Criteria
- Explicit mention of CKD stage 3b in medical records
Applicable To
- Moderate chronic kidney disease with GFR 30-44
Excludes
- End stage renal disease (N18.6)
Clinical Validation Requirements
- eGFR 30-44 on at least two occasions over a period of three months
Code-Specific Risks
- Incorrectly using N18.3 instead of N18.32 post-2020
Coding Notes
- Ensure GFR values are documented and confirm chronicity over three months.
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.
Chronic kidney disease, stage 3a
N18.31Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Chronic Kidney Disease Stage 3b to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N18.32.
Impact
Clinical: Leads to misinterpretation of patient condition., Regulatory: Non-compliance with documentation standards., Financial: Potential claim denials or delays.
Mitigation Strategy
Use specific CKD staging., Link to underlying conditions.
Impact
Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with updated coding standards., Data Quality: Inaccurate patient records and data reporting.
Mitigation Strategy
Ensure to use N18.32 for CKD stage 3b post-2020.
Impact
Lack of specific CKD staging in records.
Mitigation Strategy
Ensure all records specify CKD stage and etiology.
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 Chronic Kidney Disease Stage 3b, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Chronic Kidney Disease Stage 3b
Use these documentation templates to ensure complete and accurate documentation for Chronic Kidney Disease Stage 3b. These templates include all required elements for proper coding and billing.
Primary Care Progress Note
Specialty: NephrologyRequired Elements
- Assessment of CKD stage
- GFR values
- Linkage to etiology
- Treatment plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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