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Q89.09

Q89.09: Congenital malformations of spleen

Billable / specific codeICD-10-CMPOA exempt

Q89.09 is a billable, specific ICD-10-CM code for congenital malformations of spleen. It is valid for submission on a claim.

Check Q89.09 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Congenital splenomegaly

Excludes1 inherited from the categories above Q89.09

A category’s note binds every code beneath it.

Written on Q89.0: Congenital absence and malformations of spleen

  • isomerism of atrial appendages (with asplenia or polysplenia) (Q20.6)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Q89.09 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A56781Billing and Coding: Transthoracic Echocardiography (TTE)
  • A57306Billing and Coding: Transthoracic Echocardiography (TTE)

Alphabetic index entries that lead here

  • Polysplenia syndrome
  • Aberrant›spleen
  • Accessory›spleen
  • Anomaly, anomalous›spleen
  • Displacement, displaced›spleen(congenital)
  • Distortion›spleen
  • Ectopic, ectopia›spleen
  • Lobulation›spleen
  • Malformation›spleen
  • Polycystic›spleen
  • Splenomegaly, splenomegalia›congenital
  • Supernumerary›spleen

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Q89.0

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.