D73.0 Hyposplenism

Billable ICD-10-CM code, FY2026.

Applicable to

• Atrophy of spleen

Excludes1 (never code together)

• asplenia (congenital) (Q89.01)
• postsurgical absence of spleen (Z90.81)

MS-DRG index

Defines the logic of DRG(s) 814-816 in MDC 16.

Approximate ICD-9-CM (GEMs)

• 289.59 Other diseases of spleen (approximate)

Diagnosis Index entries for D73.0

• Asplenia (congenital) › functional
• Atrophy, atrophic (of) › spleen (senile)
• Cachexia › splenica
• Degeneration, degenerative › spleen
• Hyposplenism

Nearby codes

• D73 Diseases of spleen
• D73.0 Hyposplenism (this code)
• D73.1 Hypersplenism
• D73.2 Chronic congestive splenomegaly
• D73.3 Abscess of spleen
• D73.4 Cyst of spleen
• D73.5 Infarction of spleen