AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2021 Issue 4; ICD-10-CM New/Revised Codes
Anemia Due to Pyruvate Kinase Deficiency Anemia Due to Other Disorders of Glycolytic Enzymes
New codes have been created to describe anemia due to pyruvate kinase deficiency and anemia due to other disorders of glycolytic enzymes as follows:D55.21 Anemia due to pyruvate kinase deficiency D55.29 Anemia due to other disorders of glycolytic enzymes Red blood cell (RBC) pyruvate kinase (PK) deficiency is a rare congenital hemolytic anemia caused by mutations in the pyruvate kinase liver and red blood cells (PKLR) gene that encodes PK. The PKLR gene provides instructions for making an enzyme called PK. The PK enzyme is involved in a critical energy-producing process known as glycolysis. PK deficiency is...
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Article Overview
This premium article explains a recent ICD-10-CM update focused on anemia associated with pyruvate kinase deficiency and other disorders of glycolytic enzymes. It is useful for coders, clinical documentation teams, hematology professionals, and quality/reporting staff who need to understand the scope of the new diagnosis categories, the related disease background, and the organizations supporting the change. The article covers the clinical context of these rare inherited hemolytic anemias, the broader group of glycolytic enzyme disorders, and why the new codes were created.
Why This Topic Matters
The update affects how rare inherited hemolytic anemias are classified in diagnosis coding and supports more consistent tracking, reporting, and population-level analysis.
What You Will Learn
- The clinical context for anemia associated with pyruvate kinase deficiency
- The broader category of other glycolytic enzyme disorders linked to hemolytic anemia
- Why the new diagnosis codes were introduced and who supported them
- How this coding update may affect disease tracking and reporting
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation improvement staff
- Hematology clinicians
- Health information management professionals
- Quality reporting teams
Codes Discussed
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