ICD-10-CM Codes
I00-I99
I10-I16
I15-
2023 ICD-10-CM Diagnosis Code I15

2023 ICD-10-CM Diagnosis Code I15

Secondary hypertension

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

I15 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 I15 became effective on October 1, 2022.
This is the American ICD-10-CM version of I15 - other international versions of ICD-10 I15 may differ.

Code Also

Code Also Help

A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.

underlying condition

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 I15. 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.

postprocedural hypertension (
ICD-10-CM Diagnosis Code I97.3
Postprocedural hypertension
I97.3
)

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 (I15) and the excluded code together.

secondary hypertension involving vessels of brain (I60-I69
ICD-10-CM Range I60-I69
Cerebrovascular diseases
Type 1 Excludes
- traumatic intracranial hemorrhage (S06.-)
Use Additional
- code to identify presence of:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- history of tobacco dependence (Z87.891)
- hypertension (I10-I16)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
- I60 Nontraumatic subarachnoid hemorrhage
- I61 Nontraumatic intracerebral hemorrhage
- I62 Other and unspecified nontraumatic intra...
- I63 Cerebral infarction
- I65 Occlusion and stenosis of precerebral ar...
- I66 Occlusion and stenosis of cerebral arter...
- I67 Other cerebrovascular diseases
- I68 Cerebrovascular disorders in diseases cl...
- I69 Sequelae of cerebrovascular disease
)
secondary hypertension involving vessels of eye (
ICD-10-CM Diagnosis Code H35.0
Background retinopathy and retinal vascular changes
Code Also
- any associated hypertension (I10)
H35.0-
)

The following code(s) above I15 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 I15:

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

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 I15:

Type 1 Excludes: I12

ICD-10-CM Diagnosis Code I12
Hypertensive chronic kidney disease
Includes
- any condition in N18 and N26 - due to hypertension
- arteriosclerosis of kidney
- arteriosclerotic nephritis (chronic) (interstitial)
- hypertensive nephropathy
- nephrosclerosis
Type 1 Excludes
- hypertension due to kidney disease (I15.0, I15.1)
- renovascular hypertension (I15.0)
- secondary hypertension (I15.-)
Type 2 Excludes
- acute kidney failure (N17.-)
Applicable To: O10.4

ICD-10-CM Diagnosis Code O10.4
Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
Applicable To
- Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
Use Additional
- code from I15 to identify the type of secondary hypertension
Use Additional: O10.4

ICD-10-CM Diagnosis Code O10.4
Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
Applicable To
- Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
Use Additional
- code from I15 to identify the type of secondary hypertension

ICD-10-CM Codes Adjacent To I15

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

I15.1 Hypertension secondary to other renal disorders

I15.2 Hypertension secondary to endocrine disorders

I15.8 Other secondary hypertension

I15.9 Secondary hypertension, unspecified

I16 Hypertensive crisis

I16.0 Hypertensive urgency

I16.1 Hypertensive emergency

I16.9 Hypertensive crisis, unspecified

I20 Angina pectoris

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 I15

Secondary hypertension

Postprocedural hypertension

Cerebrovascular diseases

Background retinopathy and retinal vascular changes

Diseases of the circulatory system

Hypertensive diseases

Hypertensive chronic kidney disease

Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium

Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium