Q89.09 — Congenital malformations of spleen
Is Q89.09 billable?
Yes — Q89.09 is billable for FY2027. Q89.09 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Q89.09 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Q89.09 at a glance
| Code | Q89.09 |
|---|---|
| Description | Congenital malformations of spleen |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does Q89.09 group to?
Q89.09 sits in MDC 16 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 814Reticuloendothelial and Immunity Disorders with MCCmedical
- 815Reticuloendothelial and Immunity Disorders with CCmedical
- 816Reticuloendothelial and Immunity Disorders without CC/MCCmedical
As a secondary diagnosis, Q89.09 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is Q89.09 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Q89.09. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Polysplenia syndrome
- Aberrant › spleen (congenital)
- Accessory › spleen (congenital)
- Anomaly, anomalous › spleen (congenital) (unspecified type)
- Displacement, displaced › spleen
- Distortion › spleen (s) (congenital)
- Ectopic, ectopia › spleen (congenital)
- Lobulation › spleen (congenital)
- Malformation › spleen (congenital)
- Polycystic › spleen (disease)
- Splenomegaly, splenomegalia › congenital (Bengal) (cryptogenic) (idiopathic) (tropical)
- Supernumerary › spleen (congenital)
Inclusion terms
Alternative wording in documentation that is classified to Q89.09.
- Congenital splenomegaly
Excludes1 — never code together — inherited from Q89.0
The conditions below can never be reported together with Q89.09 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- isomerism of atrial appendages (with asplenia or polysplenia) (Q20.6)
Excludes2 — not included here — inherited from Chapter 17
The conditions below are not part of Q89.09, but a patient may have both at the same time. When documentation supports it, Q89.09 and the excluded code may both be reported.
- inborn errors of metabolism (E70-E88)
How long has Q89.09 existed?
Q89.09 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.