D73.1 vs Q89.0
D73.1 (Hypersplenism) compared with Q89.0 (Congenital absence and malformations of spleen), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. D73.1 carries an Excludes1 note covering Q89.0: “splenomegaly congenital (Q89.0)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| D73.1Hypersplenism | Q89.0Congenital absence and malformations of spleen | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | D50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Hypersplenism is a billable ICD-10-CM diagnosis code (D73.1). | Congenital absence and malformations of spleen is a non-billable ICD-10-CM category code (Q89.0). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources