2026 ICD-10-CM Diagnosis Code D73.89Other diseases of spleen

ICD-10-CM Codes›D50–D89›D70-D77›D73

ICD-10-CM D73.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D73.89 is a billable ICD-10-CM diagnosis code for other diseases of spleen. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 814 through 816. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified hematologic conditions.

Code Identity

ICD-10-CM Code
D73.89
Billable Status
Yes — Valid for Submission
Code Describes
Other diseases of spleen
Short Description
Other diseases of spleen
Same as the full description in the CMS dataset.
Parent Code
D73.8
Other diseases of spleen

Code Classification

ChapterD50–D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
SectionD70-D77Other disorders of blood and blood-forming organs
CategoryD73Diseases of spleen
This CodeD73.89Other diseases of spleen

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Calcification of spleen
  • Extramedullary hematopoiesis
  • Extramedullary hematopoiesis of spleen
  • Hepatic schistosomiasis
  • Infection of liver and spleen caused by Schistosoma mansoni
  • Infection of spleen
  • Inflammatory pseudoneoplasm of spleen
  • Lesion of spleen
  • Lymphoid hyperplasia of spleen
  • Perisplenitis
  • Red blood cell sequestration in spleen
  • Sago spleen
  • Schistosoma mansoni infection
  • Sclerosing angiomatoid nodular transformation of spleen
  • Septic splenitis
  • Splenic fibrosis
  • Splenic pseudocyst
  • Splenitis
  • Splenosis
  • Tenderness of lymphoreticular structure
  • Tenderness of spleen
  • Wandering spleen

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Fibrosis of spleen NOS
  • Perisplenitis
  • Splenitis NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Calcification
      • spleen
    • Deformity
      • spleen
        • acquired
    • Disease, diseased
      • spleen
        • postinfectional
    • Episplenitis
    • Fibrosis, fibrotic
      • spleen
    • Fistula(cutaneous)
      • splenocolic
    • Floating
      • spleen
    • Infection, infected, infective(opportunistic)
      • spleen
    • Inflammation, inflamed, inflammatory(with exudation)
      • spleen (capsule)
    • Lesion(s) (nontraumatic)
      • spleen
    • Lien migrans
    • Movable
      • spleen
    • Perisplenitis(infectional)
    • Prolapse, prolapsed
      • spleen
    • Ptosis
      • spleen
    • Septic
      • spleen (acute)
    • Splenitis(interstitial) (malignant) (nonspecific)
    • Splenocele
    • Splenoptosis
    • Splenosis
    • Wandering
      • spleen

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR BLD010
Other specified and unspecified hematologic conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Wandering Spleen

    a congenital or acquired condition in which the spleen is not in its normal anatomical position but moves about in the abdomen. this is due to laxity or absence of suspensory ligaments which normally provide peritoneal attachments to keep the spleen in a fixed position. clinical symptoms include abdominal pain, splenic torsion and ischemia.

  • Splenosis

    the spontaneous transplantation of splenic tissue to unusual sites after open splenic trauma, e.g., after automobile accidents, gunshot or stab wounds. the splenic pulp implants appear as red-blue nodules on the peritoneum, omentum, and mesentery, morphologically similar to multifocal pelvic endometriosis. (segen, dictionary of modern medicine, 1992)

  • Splenitis

    inflammation of the spleen.

  • Wandering Spleen

    a condition characterized by an abnormal spleen position due to loss, weakness, or malformation of one or more of the ligaments that hold the spleen in its normal position in the left upper abdomen. it may present as a birth defect or follow injuries or pregnancy. signs and symptoms include abdominal discomfort and splenomegaly.

  • Splenosis

    the presence of benign ectopic splenic tissue in the peritoneum.

  • Schistosoma Mansoni Infection

    an infection that is caused by schistosoma mansoni.

Patient EducationClinical

Spleen Diseases

Your spleen is an organ above your stomach and under your ribs on your left side. It is about as big as your fist. The spleen is part of your lymphatic system, which fights infection and keeps your body fluids in balance. It contains white blood cells that fight germs.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert D73.89 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
289.59 Spleen disease NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D73.89Overview

Is D73.89 (Other diseases of spleen) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other diseases of spleen on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D73.89 group to?

When other diseases of spleen is the principal diagnosis on an inpatient stay, it groups to MS-DRG 814, 815, 816, with relative weights from 0.6320 to 2.1267 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D73.89?

Under the General Equivalence Mappings, other diseases of spleen converts to ICD-9-CM 289.59 (spleen disease NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.