ICD-10-CM 2027
ICD-10 code for Tommaselli's disease
From the official ICD-10-CM alphabetic index entry “Tommaselli's disease”. Page updated September 29, 2026.
About coding Tommaselli's disease
The ICD-10-CM code for Tommaselli's disease is R31.9 (Hematuria, unspecified).
Within R31, choose R31.9 (unspecified) only when documentation doesn't support a more specific option: Gross hematuria (R31.0), benign essential microscopic hematuria (R31.1) and other microscopic hematuria (R31.2).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 695 (Kidney and Urinary Tract Signs and Symptoms with MCC, relative weight 1.1139), DRG 696 (Kidney and Urinary Tract Signs and Symptoms without MCC, relative weight 0.6679), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 Tommaselli's disease codes (official index)
- correct substance properly administered
- overdose or wrong substance given or taken
Common questions about Tommaselli's disease ICD-10 codes
What is the ICD-10 code for Tommaselli's disease?
- R31.9 — Hematuria, unspecified.
Is R31.9 billable?
- Yes. R31.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R31.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R31.9 as a principal diagnosis.
Is R31.9 a CC or MCC?
- No. R31.9 is neither a CC nor an MCC under MS-DRG v44.0.