N20.0 – Calculus of kidney
ICD-10-CM 2027 diagnosis code · Urolithiasis
ICD-10-CM code
N20.0
- Code
N20.0(claims format:N200)- Description
- Calculus of kidney
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 14. Diseases of the genitourinary system (N00-N99)
- Block
- N20-N23 Urolithiasis
- Parent codes
- N20
Notes for N20.0
Applicable to:
- Nephrolithiasis NOS
- Renal calculus
- Renal stone
- Staghorn calculus
- Stone in kidney
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
N20 – Calculus of kidney and ureter
Applicable to:
- Calculous pyelonephritis
Index terms for N20.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in N20
Frequently asked questions
What is ICD-10 code N20.0?
N20.0 is the ICD-10-CM code for calculus of kidney, in the block N20-N23 (Urolithiasis).
Is N20.0 a billable code?
Yes. N20.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does N20.0 belong to?
It belongs to category N20 – Calculus of kidney and ureter.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.