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ICD-10-CM Codes
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I00-I99
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I10-I16
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I15-
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2023 ICD-10-CM Diagnosis Code I15.9
2023 ICD-10-CM Diagnosis Code I15.9
Secondary hypertension, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- I15.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM I15.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of I15.9 - other international versions of ICD-10 I15.9 may differ.
The following code(s) above
I15.9 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
I15.9:
- I00-I99
2023 ICD-10-CM Range I00-I99
Diseases of the circulatory systemType 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.-)
- I10-I16
2023 ICD-10-CM Range I10-I16
Hypertensive diseasesType 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)
- I15
ICD-10-CM Diagnosis Code I15
Secondary hypertension
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- postprocedural hypertension (I97.3)
Type 2 Excludes- secondary hypertension involving vessels of brain (I60-I69)
- secondary hypertension involving vessels of eye (H35.0-)
- Benign secondary hypertension
- Benign secondary hypertension (htn)
- Hypertension (high blood pressure)
- Hypertension due to renal transplant
- Hypertension secondary to kidney transplant
- Malignant hypertension, secondary
- Malignant secondary hypertension
- Secondary hypertension
- Secondary hypertension (htn)
ICD-10-CM I15.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 304 Hypertension with mcc
- 305 Hypertension without mcc
Convert I15.9 to ICD-9-CM
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
- Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) I10
ICD-10-CM Diagnosis Code I10
Essential (primary) hypertension
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Questionable As Admission Dx
Includes- high blood pressure
- hypertension (arterial) (benign) (essential) (malignant) (primary) (systemic)
Type 1 Excludes- hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
Type 2 Excludes- essential (primary) hypertension involving vessels of brain (I60-I69)
- essential (primary) hypertension involving vessels of eye (H35.0-)
ICD-10-CM Codes Adjacent To I15.9
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
I16.0 Hypertensive urgency
I16.1 Hypertensive emergency
I16.9 Hypertensive crisis, unspecified
I20.1 Angina pectoris with documented spasm
I20.2 Refractory angina pectoris
I20.8 Other forms of angina pectoris
I20.9 Angina pectoris, unspecified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
