D73.0 vs Z90.81
D73.0 (Hyposplenism) compared with Z90.81 (Acquired absence 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. D73.0 carries an Excludes1 note covering Z90.81: “postsurgical absence of spleen (Z90.81)”
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
| D73.0Hyposplenism | Z90.81Acquired absence of spleen | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | D50-D89 — Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune Mechanism (D50-D89) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Hyposplenism is a billable ICD-10-CM diagnosis code (D73.0). | Acquired absence of spleen is a billable ICD-10-CM diagnosis code (Z90.81). |
| Includes | Atrophy of spleen | postprocedural or post-traumatic loss of body part NEC |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources