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ICD-10 Coding for Decreased Glomerular Filtration Rate(N18.30, N18.1, N18.31)

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Learn about the ICD-10 coding and documentation requirements for decreased glomerular filtration rate, including CKD staging and billing considerations.

Also known as:
Reduced GFRLow Glomerular Filtration Rate
Related ICD-10 Code Ranges

Complete code families applicable to Decreased Glomerular Filtration Rate

N00-N99Primary Range

Diseases of the genitourinary system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
N18.30Chronic kidney disease, stage 3 unspecified
N18.6End stage renal disease
Primary ICD-10-CM Codes
Chronic kidney disease, stage 3 unspecified
N18.30Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Chronic kidney disease, stage 3aN18.31
Chronic kidney disease, stage 3bN18.32

Documentation & Coding Risks

Avoid these common issues when documenting Decreased Glomerular Filtration Rate.

Omitting GFR value in CKD documentation

Impact

Clinical: Inaccurate assessment of CKD progression., Regulatory: Non-compliance with documentation standards., Financial: Potential claim denials.

Mitigation

Always include GFR in clinical notes., Use templates to ensure completeness.

Using N18.6 without dialysis documentation

Impact

Reimbursement: Incorrect billing can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate patient records.

Mitigation

Ensure dialysis is documented before using N18.6.

CKD Staging

Impact

Incorrect staging can lead to audit flags.

Mitigation

Regularly review GFR values and update documentation.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with N18.30.