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ICD-10-CM 2027

ICD-10 code for bladder distortion

Q64.79

Other congenital malformations of bladder and urethra

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Distortion (s) (congenital) › bladder”. Page updated September 29, 2026.

About coding bladder distortion

The ICD-10-CM code for bladder distortion is Q64.79 (Other congenital malformations of bladder and urethra).

Within Q64.7, choose Q64.79 (Other congenital malformations of bladder and urethra) only when documentation doesn't support a more specific option: unspecified congenital malformation of bladder and urethra (Q64.70), congenital prolapse of urethra (Q64.71), congenital prolapse of urinary meatus (Q64.72), congenital urethrorectal fistula (Q64.73), Double urethra (Q64.74) and Double urinary meatus (Q64.75).

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.

Common questions about bladder distortion ICD-10 codes

What is the ICD-10 code for bladder distortion?

Q64.79 — Other congenital malformations of bladder and urethra.

Is Q64.79 billable?

Yes. Q64.79 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q64.79 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q64.79 as a principal diagnosis.

Is Q64.79 a CC or MCC?

No. Q64.79 is neither a CC nor an MCC under MS-DRG v44.0.