ICD-10-CM Codes
I00-I99
I10-I16
I12-
2023 ICD-10-CM Diagnosis Code I12

2023 ICD-10-CM Diagnosis Code I12

Hypertensive chronic kidney disease

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

I12 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM I12 became effective on October 1, 2022.
This is the American ICD-10-CM version of I12 - other international versions of ICD-10 I12 may differ.

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I12. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

hypertension due to kidney disease (
ICD-10-CM Diagnosis Code I15.0
Renovascular hypertension
I15.0
,
ICD-10-CM Diagnosis Code I15.1
Hypertension secondary to other renal disorders
I15.1
)
renovascular hypertension (
ICD-10-CM Diagnosis Code I15.0
Renovascular hypertension
I15.0
)
secondary hypertension (
ICD-10-CM Diagnosis Code I15
- I15 Secondary hypertension
  - I15.0 Renovascular hypertension
  - I15.1 Hypertension secondary to other renal disorde...
  - I15.2 Hypertension secondary to endocrine disorders...
  - I15.8 Other secondary hypertension
  - I15.9 Secondary hypertension, unspecified
I15.-
)

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (I12) and the excluded code together.

acute kidney failure (
ICD-10-CM Diagnosis Code N17
- N17 Acute kidney failure
  - N17.0 Acute kidney failure with tubular necrosis
  - N17.1 Acute kidney failure with acute cortical necr...
  - N17.2 Acute kidney failure with medullary necrosis
  - N17.8 Other acute kidney failure
  - N17.9 Acute kidney failure, unspecified
N17.-
)

Includes

Includes Help

"Includes" further defines, or give examples of, the content of the code or category.

any condition in
ICD-10-CM Diagnosis Code N18
Chronic kidney disease (CKD)
Code First
- any associated:
- diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22)
- hypertensive chronic kidney disease (I12.-, I13.-)
Use Additional
- code to identify kidney transplant status, if applicable, (Z94.0)
N18
and
ICD-10-CM Diagnosis Code N26
Unspecified contracted kidney
Type 1 Excludes
- contracted kidney due to hypertension (I12.-)
- diffuse sclerosing glomerulonephritis (N05.8.-)
- hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
- small kidney of unknown cause (N27.-)
N26
- due to hypertension
arteriosclerosis of kidney
arteriosclerotic nephritis (chronic) (interstitial)
hypertensive nephropathy
nephrosclerosis

The following code(s) above I12 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to I12:

I00-I99
2023 ICD-10-CM Range I00-I99
Diseases of the circulatory system
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Diseases of the circulatory system
I10-I16
2023 ICD-10-CM Range I10-I16
Hypertensive diseases
Type 1 Excludes
- neonatal hypertension (P29.2)
- primary pulmonary hypertension (I27.0)
Type 2 Excludes
- hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
Use Additional
- code to identify:
- exposure to environmental tobacco smoke (Z77.22)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Hypertensive diseases

Clinical Information

Hardening of the kidney due to infiltration by fibrous connective tissue (fibrosis), usually caused by renovascular diseases or chronic hypertension. Nephrosclerosis leads to renal ischemia.
Sclerosis or hardening of the kidney due to renovascular disease.

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to I12:

Code First: N18

ICD-10-CM Diagnosis Code N18
Chronic kidney disease (CKD)
Code First
- any associated:
- diabetic chronic kidney disease (E08.22, E09.22, E10.22, E11.22, E13.22)
- hypertensive chronic kidney disease (I12.-, I13.-)
Use Additional
- code to identify kidney transplant status, if applicable, (Z94.0)
Type 1 Excludes: N26
, N26

ICD-10-CM Diagnosis Code N26
Unspecified contracted kidney
Type 1 Excludes
- contracted kidney due to hypertension (I12.-)
- diffuse sclerosing glomerulonephritis (N05.8.-)
- hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
- small kidney of unknown cause (N27.-)
ICD-10-CM Diagnosis Code N26
Unspecified contracted kidney
Type 1 Excludes
- contracted kidney due to hypertension (I12.-)
- diffuse sclerosing glomerulonephritis (N05.8.-)
- hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (I12.-)
- small kidney of unknown cause (N27.-)
Type 2 Excludes: I70.1

ICD-10-CM Diagnosis Code I70.1
Atherosclerosis of renal artery
Applicable To
- Goldblatt's kidney
Type 2 Excludes
- atherosclerosis of renal arterioles (I12.-)
Includes: I13

ICD-10-CM Diagnosis Code I13
Hypertensive heart and chronic kidney disease
Includes
- any condition in I11.- with any condition in I12.-
- cardiorenal disease
- cardiovascular renal disease
Applicable To: O10.2

ICD-10-CM Diagnosis Code O10.2
Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium
Applicable To
- Any condition in I12 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
Use Additional
- code from I12 to identify the type of hypertensive chronic kidney disease
Use Additional: O10.2

ICD-10-CM Diagnosis Code O10.2
Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium
Applicable To
- Any condition in I12 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
Use Additional
- code from I12 to identify the type of hypertensive chronic kidney disease

ICD-10-CM Codes Adjacent To I12

I09.1 Rheumatic diseases of endocardium, valve unspecified

I09.2 Chronic rheumatic pericarditis

I09.8 Other specified rheumatic heart diseases

I09.81 Rheumatic heart failure

I09.89 Other specified rheumatic heart diseases

I09.9 Rheumatic heart disease, unspecified

I10 Essential (primary) hypertension

I11 Hypertensive heart disease

I11.0 Hypertensive heart disease with heart failure

I11.9 Hypertensive heart disease without heart failure

I12 Hypertensive chronic kidney disease

I12.0 Hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease

I12.9 Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

I13 Hypertensive heart and chronic kidney disease

I13.0 Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

I13.1 Hypertensive heart and chronic kidney disease without heart failure

I13.10 …… with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

I13.11 …… with stage 5 chronic kidney disease, or end stage renal disease

I13.2 Hypertensive heart and chronic kidney disease with heart failure and with stage 5 chronic kidney disease, or end stage renal disease

I15 Secondary hypertension

I15.0 Renovascular hypertension

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code I12

Hypertensive chronic kidney disease

Renovascular hypertension

Hypertension secondary to other renal disorders

Renovascular hypertension

Chronic kidney disease (CKD)

Unspecified contracted kidney

Diseases of the circulatory system

Hypertensive diseases

Chronic kidney disease (CKD)

Unspecified contracted kidney

Unspecified contracted kidney

Atherosclerosis of renal artery

Hypertensive heart and chronic kidney disease

Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium

Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium