N20.9
BillableUrinary calculus, unspecified
Urinary calculus, unspecified
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
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
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(36)
SNOMED CT
- Calculous pyelonephritis23754003
- Pyelonephritis due to kidney stone23754003
- Urinary calculus95566004
- Urinary stone95566004
- Urolith in urinary system95566004
- Urolithiasis95566004
- Pyelonephritis associated with another disorder197782004
- Secondary pyelonephritis197782004
- Urinary calculus in schistosomiasis197954003
- Long-term disorder of dialysis236542001
- Uric acid urolithiasis267441009
- Radiolucent calculus of urinary tract304543009
- Magnesium ammonium phosphate urolithiasis444690001
- Struvite urolithiasis444690001
- Calcium oxalate urolithiasis444717006
- Indinavir urolithiasis699850008
- Calculus of upper urinary tract717958000
- Matrix stone formation during renal dialysis1153581007
Clinical Terms
- Secondary pyelonephritis
- Urolith in urinary system
- Urinary stone
- Struvite urolithiasis
- Magnesium ammonium phosphate urolithiasis
- Indinavir urolithiasis
- Pyelonephritis associated with another disorder
- Uric acid urolithiasis
- Urolithiasis
- Pyelonephritis due to kidney stone
- Calculous pyelonephritis
- Calculus of upper urinary tract
- Matrix stone formation during renal dialysis
- Calcium oxalate urolithiasis
- Radiolucent calculus of urinary tract
- Urinary calculus in schistosomiasis
- Long-term disorder of dialysis
Frequently Asked Questions
What is the ICD-10 code for urinary calculus, unspecified?
The ICD-10-CM code for urinary calculus, unspecified is N20.9. The full clinical description is "Urinary calculus, unspecified". N20.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code N20.9 mean?
ICD-10-CM code N20.9 represents “Urinary calculus, unspecified”. 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 N20.9 a billable code?
Yes, N20.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is N20.9 in?
N20.9 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What codes cannot be used with N20.9?
N20.9 has Excludes1 notes indicating codes that cannot be used together with it, including: nephrocalcinosis (E83.59); that with hydronephrosis (N13.2).
What SNOMED CT codes does N20.9 map to?
N20.9 maps to 12 SNOMED CT concepts: 444717006, 23754003, 717958000, 699850008, 236542001, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for N20.9?
N20.9 is linked to 1 UMLS Concept Unique Identifier: C4759702. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N20.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like urinary calculus, unspecified 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 N20.9?
N20.9 maps to the ICD-11 code: GB70.Z (Calculus of upper urinary tract, unspecified).
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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.