N21.0
BillableCalculus in bladder
Calculus in bladder
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Calculus in diverticulum of bladder
- Urinary bladder stone
Includes
Conditions included under this code
- calculus of lower urinary tract with cystitis and urethritis
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •staghorn calculusN20.0
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(137)
SNOMED CT
- Calculus in diverticulum of bladder18109005
- Calculus in diverticulum of urinary bladder18109005
- Calculus of bladder diverticulum18109005
- Diverticulum of bladder with calculus18109005
- Stone in bladder diverticulum18109005
- Bladder calculus70650003
- Bladder stone70650003
- Calculus of bladder70650003
- Urinary bladder stone70650003
- Vesical calculus70650003
- Vesicolithiasis70650003
- Calculus of lower urinary tract79509009
- Lower urinary tract calculus79509009
- Uric acid urolithiasis267441009
- Oxalate bladder stone271778003
- Oxalate urinary bladder stone271778003
- Urate urinary bladder stone271779006
- Uric acid bladder stone271779006
- Uric acid calculus of urinary bladder271779006
- Phosphate bladder stone271780009
- Phosphate calculus of urinary bladder271780009
- Calcium oxalate urolithiasis444717006
- Small calculus particles in urinary bladder446702009
- Urinary bladder sand446702009
- Calcium oxalate calculus of bladder833292002
- Calcium oxalate calculus of urinary bladder833292002
UMLS
- Bladder CalculiC0005683
- Bladder Calculi, UrinaryC0005683
- Bladder CalculusC0005683
- Bladder Calculus, UrinaryC0005683
- Bladder StoneC0005683
- Bladder Stone, UrinaryC0005683
- Bladder StonesC0005683
- Bladder Stones, UrinaryC0005683
- Bladder calculusC0005683
- Bladder stoneC0005683
- Bladder stonesC0005683
- Calculi of Urinary BladderC0005683
- Calculi, BladderC0005683
- Calculi, Urinary BladderC0005683
- Calculi, VesicalC0005683
- Calculus bladderC0005683
- Calculus in bladderC0005683
- Calculus of bladderC0005683
- Calculus urinary bladderC0005683
- Calculus, BladderC0005683
- Calculus, Urinary BladderC0005683
- Calculus, VesicalC0005683
- CystolithC0005683
- CystolithsC0005683
- Stone urinary bladderC0005683
- Stone, BladderC0005683
- Stone, Urinary BladderC0005683
- Stones, BladderC0005683
- Stones, Urinary BladderC0005683
- Urinary Bladder CalculiC0005683
- Urinary Bladder CalculusC0005683
- Urinary Bladder StoneC0005683
- Urinary Bladder StonesC0005683
- Urinary bladder stoneC0005683
- Urinary bladder stone (disorder)C0005683
- Vesical CalculiC0005683
- Vesical CalculusC0005683
- Vesical calculusC0005683
- VesicolithiasisC0005683
- bladder calculiC0005683
- bladder calculusC0005683
- bladder stoneC0005683
- bladder stonesC0005683
- bladder stones urinaryC0005683
- cystolithC0005683
- stones bladderC0005683
- urinary bladder stoneC0005683
- vesical calculiC0005683
- vesical calculusC0005683
- vesicolithiasisC0005683
- Calculus in diverticulum of bladderC0156265
- Calculus in diverticulum of urinary bladderC0156265
- Calculus in diverticulum of urinary bladder (disorder)C0156265
- Calculus of bladder diverticulumC0156265
- Diverticulum of bladder with calculusC0156265
- Stone in bladder diverticulumC0156265
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.