What is the ICD-10 code for low GFR?

The ICD-10 code for low glomerular filtration rate without CKD is R94.4, while CKD stages are coded under N18.1-N18.9.

How is low GFR documented?

Low GFR should be documented with specific CKD staging and causal conditions, such as diabetes or hypertension.

ICD-10 Coding for Low Glomerular Filtration Rate(N18.1, E11.22, I12.9)

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Learn about ICD-10 coding for low glomerular filtration rate, including CKD stages, documentation requirements, and common coding pitfalls.

Also known as:

Low GFRDecreased GFR

Related ICD-10 Code Ranges

Complete code families applicable to Low 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

Code	Description	When to Use	Key Documentation
N18.1	Chronic kidney disease, stage 1	Use when CKD stage 1 is documented with GFR ≥90.	GFR ≥90 mL/min/1.73 m² for ≥3 months with kidney damage
N18.6	End-stage renal disease	Use when ESRD is documented and patient requires dialysis.	Documentation of ESRD and dialysis requirement

Primary ICD-10-CM Codes

Chronic kidney disease, stage 1

N18.1Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Acute kidney failure, unspecifiedN17.9

Chronic kidney disease, stage 5N18.5

Documentation & Coding Risks

Avoid these common issues when documenting Low Glomerular Filtration Rate.

Using N18.6 without dialysis documentation.

Impact

Clinical: Misrepresentation of patient's condition., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation

Verify dialysis requirement before coding.

Coding CKD based solely on GFR without provider documentation.

Impact

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

Mitigation

Always confirm CKD stage with provider documentation.

CKD Stage Documentation

Impact

Inadequate documentation of CKD stages.

Mitigation

Implement regular documentation audits.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with N18.1.

Primary Code

N18.1

Chronic kidney disease, stage 1

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ICD-10 codes8

Coding risks3

FAQs2

ICD-10 Coding for Low Glomerular Filtration Rate(N18.1, E11.22, I12.9)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for low GFR?

How is low GFR documented?

Related condition guides