ICD-10-CM FY2027 diagnosis code

D57.21: Sickle-cell/Hb-C disease with crisis

Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027

D57.21 groups related diagnoses under sickle-cell/hb-c disease with crisis. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.

Billable codes under D57.21

Other codes in D57.2 Sickle-cell/Hb-C disease

D57.21 questions

Is D57.21 a billable code?

No. D57.21 is a header code that groups 6 more specific codes. Use one of the billable codes listed on this page instead.

What does D57.21 mean?

D57.21 is the ICD-10-CM code for Sickle-cell/Hb-C disease with crisis. It is in chapter 3, Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.