ICD-10 code for urinary tract congenital deformity

The ICD-10-CM code for urinary tract congenital deformity is Q64.9 (Congenital malformation of urinary system, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Q64.9.

Within Q64, choose Q64.9 (Congenital malformation of urinary system, unspecified) only when documentation doesn't support a more specific option: epispadias (Q64.0), exstrophy of urinary bladder (Q64.1), congenital posterior urethral valves (Q64.2), other atresia and stenosis of urethra and bladder neck (Q64.3), malformation of urachus (Q64.4), congenital absence of bladder and urethra (Q64.5), congenital diverticulum of bladder (Q64.6), other and unspecified congenital malformations of bladder and urethra (Q64.7) and 1 more.

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 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.