Stage 4 Chronic Kidney Disease Documented as CKD G4A3

A patient presents due to chronic kidney disease with acute kidney injury and bladder mass. The nephrologist documented “CKD G4A3” with an estimated glomerular filtration rate of 25 (eGRF25). Is the provider’s documentation of CKD G4A3 sufficient to assign a code for stage 4 chronic kidney disease? ...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This short coding guidance article addresses how nephrology documentation that uses CKD CGA staging should be interpreted for chronic kidney disease reporting. It is relevant to coders, CDI staff, and clinical documentation reviewers working with renal diagnoses and related documentation terminology. The article focuses on the relationship between stage notation, estimated kidney function, and general coding assignment considerations.

Why This Topic Matters

Accurate interpretation of nephrology documentation supports consistent chronic kidney disease reporting and helps align coded data with provider-stated staging language. It is useful for organizations that review renal documentation for code selection and clinical classification consistency.

What You Will Learn

  • How CKD staging language may appear in provider documentation
  • How CGA staging is presented in nephrology-related documentation
  • What general coding topic the article addresses for chronic kidney disease reporting
  • How documentation terminology can affect renal diagnosis classification

Who Should Read This

  • Medical coders
  • Coding auditors
  • Clinical documentation integrity specialists
  • Nephrology documentation reviewers
  • Revenue cycle staff

Codes Discussed

  • ICD-10-CM: N18.4

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