N18.2
BillableChronic kidney disease, stage 2 (mild)
Chronic kidney disease, stage 2 (mild)
Coding Notes
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
- •congenital renal failureP96.0
- •drug- and heavy-metal-induced tubulo-interstitial and tubular conditionsN14
- •extrarenal uremiaR39.2
- •hemolytic-uremic syndromeD59.3
- •hepatorenal syndromeK76.7
- •postpartum hepatorenal syndromeO90.41
- •posttraumatic renal failureT79.5
- •prerenal uremiaR39.2
- •renal failure complicating abortion or ectopic or molar pregnancy,O00-O07, O08.4
- •renal failure following labor and deliveryO90.41
- •renal failure postproceduralN99.0
Code First
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Related Codes(6)
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
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Extracted Entities
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Also Known As / Clinical Terms(67)
SNOMED CT
- Benign hypertensive heart disease36221001
- Malignant hypertensive renal disease65443008
- CKD stage 2431856006
- Chronic kidney disease stage 2431856006
- Hypertension in chronic kidney disease stage 2 due to type 1 diabetes mellitus1332464001
- Hypertension in chronic kidney disease stage 2 due to type I diabetes mellitus1332464001
- Hypertension in chronic renal disease stage 2 due to type 1 diabetes mellitus1332464001
- Benign hypertensive heart disease and chronic kidney disease stage 2285061000119106
- Benign hypertensive heart disease and chronic renal disease stage 2285061000119106
- Chronic kidney disease due to benign hypertension284961000119106
- Chronic kidney disease stage 2 due to benign hypertension284981000119102
- Chronic kidney disease stage 2 due to drug induced diabetes mellitus368431000119106
- Chronic kidney disease stage 2 due to hypertension129181000119109
- Chronic kidney disease stage 2 due to type 1 diabetes mellitus90731000119103
- Chronic kidney disease stage 2 due to type I diabetes mellitus90731000119103
- Chronic kidney disease stage 2 due to type 2 diabetes mellitus741000119101
- Chronic kidney disease stage 2 due to type II diabetes mellitus741000119101
- Diabetic stage 2 chronic renal impairment due to type 2 diabetes mellitus741000119101
- Diabetic nephropathy due to drug induced diabetes mellitus368201000119100
- Diabetic renal disease due to drug induced diabetes mellitus368201000119100
- Disorder of kidney due to drug induced diabetes mellitus368201000119100
- Nephropathy due to drug induced diabetes mellitus368201000119100
- Disorder of kidney due to secondary diabetes mellitus126551000119103
- Nephropathy due to secondary diabetes mellitus126551000119103
- Hypertension in chronic kidney disease due to type 1 diabetes mellitus71701000119105
- Hypertension in chronic kidney disease due to type I diabetes mellitus71701000119105
- Hypertension in chronic kidney disease due to type 2 diabetes mellitus71421000119105
- Hypertension in chronic kidney disease due to type II diabetes mellitus71421000119105
- Hypertension in chronic kidney disease stage 2 due to type 2 diabetes mellitus140131000119102
- Hypertension in chronic kidney disease stage 2 due to type II diabetes mellitus140131000119102
- Hypertensive heart AND chronic kidney disease stage 296741000119109
- Malignant hypertensive chronic kidney disease285831000119108
- Malignant hypertensive chronic kidney disease stage 2285861000119100
Clinical Terms
- Hypertension in chronic kidney disease stage 2 due to type 2 diabetes mellitus
- Chronic kidney disease stage 2 due to hypertension
- Benign hypertensive heart disease and chronic renal disease stage 2
- Diabetic renal disease due to drug induced diabetes mellitus
- Hypertension in chronic kidney disease stage 2 due to type II diabetes mellitus
- Chronic kidney disease stage 2 due to type II diabetes mellitus
- Chronic kidney disease stage 2 due to type 2 diabetes mellitus
- Nephropathy due to drug induced diabetes mellitus
- Malignant hypertensive renal disease
- Hypertension in chronic kidney disease due to type 2 diabetes mellitus
- Benign hypertensive heart disease and chronic kidney disease stage 2
- Chronic kidney disease stage 2 due to drug induced diabetes mellitus
- Hypertension in chronic kidney disease due to type I diabetes mellitus
- Chronic kidney disease due to benign hypertension
- Hypertension in chronic kidney disease due to type 1 diabetes mellitus
- Disorder of kidney due to secondary diabetes mellitus
- Chronic kidney disease stage 2 due to type 1 diabetes mellitus
- CKD stage 2
- Hypertensive heart AND chronic kidney disease stage 2
- Malignant hypertensive chronic kidney disease stage 2
- Nephropathy due to secondary diabetes mellitus
- Hypertension in chronic kidney disease stage 2 due to type 1 diabetes mellitus
- Hypertension in chronic kidney disease due to type II diabetes mellitus
- Hypertension in chronic renal disease stage 2 due to type 1 diabetes mellitus
- Hypertension in chronic kidney disease stage 2 due to type I diabetes mellitus
- Benign hypertensive heart disease
- Chronic kidney disease stage 2
- Diabetic nephropathy due to drug induced diabetes mellitus
- Diabetic stage 2 chronic renal impairment due to type 2 diabetes mellitus
- Malignant hypertensive chronic kidney disease
- Chronic kidney disease stage 2 due to benign hypertension
- Chronic kidney disease stage 2 due to type I diabetes mellitus
- Disorder of kidney due to drug induced diabetes mellitus
Frequently Asked Questions
What is the ICD-10 code for chronic kidney disease, stage 2 (mild)?
The ICD-10-CM code for chronic kidney disease, stage 2 (mild) is N18.2. The full clinical description is "Chronic kidney disease, stage 2 (mild)". N18.2 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code N18.2 mean?
ICD-10-CM code N18.2 represents “Chronic kidney disease, stage 2 (mild)”. 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 N18.2 a billable code?
Yes, N18.2 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is N18.2 in?
N18.2 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
Are additional codes required with N18.2?
Yes, when using N18.2, also report: kidney transplant status, if applicable, (Z94.0).
What SNOMED CT codes does N18.2 map to?
N18.2 maps to 19 SNOMED CT concepts: 36221001, 285061000119106, 431856006, 284961000119106, 284981000119102, and 14 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for N18.2?
N18.2 is linked to 1 UMLS Concept Unique Identifier: C1561639. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N18.2 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like chronic kidney disease, stage 2 (mild) 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 N18.2?
N18.2 maps to the ICD-11 code: GB61.1 (Chronic kidney disease, stage 2).
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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.