D75.83 – Thrombocytosis

ICD-10-CM 2027 diagnosis code · Other disorders of blood and blood-forming organs

Non-billable header

ICD-10-CM code D75.83

Code: D75.83 (claims format: D7583)
Description: Thrombocytosis
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Block: D70-D77 Other disorders of blood and blood-forming organs
Parent codes: D75 › D75.8

Billable codes under D75.83

D75.83 is a header code and cannot be used on claims. Choose the most specific code:

D75.838 – Other thrombocytosisBillable
D75.839 – Thrombocytosis, unspecifiedBillable

Notes for D75.83

Excludes2 (not included here):

essential thrombocythemia (D47.3)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

D75 – Other and unspecified diseases of blood and blood-forming organs

Excludes2 (not included here):

acute lymphadenitis (L04.-)
chronic lymphadenitis (I88.1)
enlarged lymph nodes (R59.-)
hypergammaglobulinemia NOS (D89.2)
lymphadenitis NOS (I88.9)
mesenteric lymphadenitis (acute) (chronic) (I88.0)

Related codes in D75.8

Frequently asked questions

What is ICD-10 code D75.83?

D75.83 is the ICD-10-CM code for thrombocytosis, in the block D70-D77 (Other disorders of blood and blood-forming organs).

Is D75.83 a billable code?

No. D75.83 is a header code with more specific child codes; report one of the billable codes listed above.

What category does D75.83 belong to?

It belongs to category D75 – Other and unspecified diseases of blood and blood-forming organs.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.