D73.89 Other diseases of spleen

The ICD-10-CM code for Other diseases of spleen is D73.89 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

Section

D70-D77: Other disorders of blood and blood-forming organs (D70-D77)

Category D73

11 codes (9 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to D73.89:

• Splenitis (interstitial) (malignant) (nonspecific)
• Splenosis
• Lien migrans
• Perisplenitis (infectional)
• Episplenitis
• Splenocele
• Splenoptosis
• Calcification › spleen

Inclusion Terms

• Fibrosis of spleen NOS
• Perisplenitis
• Splenitis NOS

U.S. Hospital Utilization

• An estimated 9,515 U.S. inpatient stays in 2023 included D73.89 among the documented diagnoses.
• 300 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 3 TOC entry

3. Chapter 3: Disease of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89) ............................................................................................. 39

Reserved for future guideline expansion

Reserved for future guideline expansion ...................................................................................... 39

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)