ICD-10-CM 2027
ICD-10 code for spleen congenital absence
From the official ICD-10-CM alphabetic index entry “Absence (of) (organ or part) (complete or partial) › spleen (congenital)”. Page updated September 29, 2026.
About coding spleen congenital absence
The ICD-10-CM code for spleen congenital absence is Q89.01 (Asplenia (congenital)). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Q89.01.
Within Q89.0 (congenital absence and malformations of spleen), Q89.01 is specifically for Asplenia (congenital). Related codes cover congenital malformations of spleen (Q89.09).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 814 (Reticuloendothelial and Immunity Disorders with MCC, relative weight 2.0729), DRG 815 (Reticuloendothelial and Immunity Disorders with CC, relative weight 1.0444) and DRG 816 (Reticuloendothelial and Immunity Disorders without CC/MCC, relative weight 0.7381), in MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific spleen congenital absence codes (official index)
- acquired Z90.81 — Acquired absence of spleen
Common questions about spleen congenital absence ICD-10 codes
What is the ICD-10 code for spleen congenital absence?
- Q89.01 — Asplenia (congenital). More specific codes apply when the documentation supports them: Z90.81.
What is the ICD-10 code for acquired spleen congenital absence?
- Z90.81 — Acquired absence of spleen.
Is Q89.01 billable?
- Yes. Q89.01 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q89.01 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q89.01 as a principal diagnosis.
Is Q89.01 a CC or MCC?
- Q89.01 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.