AutoICD API

N21.0

Billable

Calculus in bladder

Calculus in bladder

Status

Billable / Specific

Block

N20-N23

Parent Code

N21

ICD-11 Mapping

1 equivalent

Coding Notes

Related Codes(3)
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

Also Known As / Clinical Terms(137)

UMLS

Clinical Terms

  • Cystoliths
  • Oxalate bladder stone
  • Calculi, Bladder
  • Calculus in diverticulum of urinary bladder (disorder)
  • Bladder Stone
  • bladder calculus
  • Bladder Stones
  • bladder calculi
  • Urate urinary bladder stone
  • Calculi of Urinary Bladder
  • Urinary Bladder Stones
  • Phosphate calculus of urinary bladder
  • Small calculus particles in urinary bladder
  • bladder stones urinary
  • Lower urinary tract calculus
  • Urinary bladder stone (disorder)
  • Urinary Bladder Calculus
  • Vesical Calculi
  • Bladder Calculi, Urinary
  • Uric acid calculus of urinary bladder
  • Uric acid urolithiasis
  • Calculus bladder
  • Calculus urinary bladder
  • Phosphate bladder stone
  • Uric acid bladder stone
  • Urinary Bladder Stone
  • Stone urinary bladder
  • Stone, Urinary Bladder
  • Stone, Bladder
  • Stones, Bladder
  • stones bladder
  • Calculi, Vesical
  • vesical calculus
  • Bladder Stone, Urinary
  • Calculus, Urinary Bladder
  • Stone in bladder diverticulum
  • Calculus of bladder
  • vesicolithiasis
  • Bladder Calculus, Urinary
  • Calculus in diverticulum of urinary bladder
  • Urinary bladder sand
  • Cystolith
  • Oxalate urinary bladder stone
  • Calculus of bladder diverticulum
  • Stones, Urinary Bladder
  • Diverticulum of bladder with calculus
  • Bladder Stones, Urinary
  • Urinary Bladder Calculi
  • Calcium oxalate calculus of bladder
  • Calculus, Bladder
  • Calcium oxalate calculus of urinary bladder
  • Calculus in diverticulum of bladder
  • Calcium oxalate urolithiasis
  • Calculi, Urinary Bladder
  • Calculus, Vesical
Frequently Asked Questions
What is the ICD-10 code for calculus in bladder?

The ICD-10-CM code for calculus in bladder is N21.0. The full clinical description is "Calculus in bladder". N21.0 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code N21.0 mean?

ICD-10-CM code N21.0 represents “Calculus in bladder”. It is classified under Chapter 14: Diseases of the Genitourinary System and is a billable/specific code that can be used on a claim.

Is N21.0 a billable code?

Yes, N21.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is N21.0 in?

N21.0 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).

What SNOMED CT codes does N21.0 map to?

N21.0 maps to 10 SNOMED CT concepts: 70650003, 833292002, 444717006, 18109005, 79509009, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for N21.0?

N21.0 is linked to 2 UMLS Concept Unique Identifiers: C0005683, C0156265. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does N21.0 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like calculus in bladder affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of N21.0?

N21.0 maps to the ICD-11 code: GB71.0 (Calculus in bladder).

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.