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ICD Hub / Diseases of the circulatory system (I00–I99) / BA04.Y - Other specified secondary hypertension
ICD-11

ICD-11 Codes
for BA04.Y - Other specified secondary hypertension
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Other Specified Secondary Hypertension

Other specified secondary hypertension, identified by the ICD-11 code BA04.Y, refers to elevated blood pressure that stems from a specific, identifiable underlying cause. Unlike essential hypertension, this form of high blood pressure has a distinct, often correctable, origin. The ICD-11 classification places this condition within Chapter 11, Diseases of the circulatory system, under the broader category of secondary hypertension (BA04). This coding system allows for detailed descriptions by enabling the combination of codes to specify manifestations and the precise cause of the hypertension.

Identifying the Causes of Secondary Hypertension

The diagnosis of secondary hypertension implies an identifiable underlying condition. Potential causes that can be linked to BA04.Y include various endocrine disorders such as thyrotoxicosis, Cushing syndrome, and hyperaldosteronism. Renal conditions are also significant contributors, encompassing nephritic syndrome, nephrotic syndrome, persistent proteinuria, glomerular diseases, and tubulo-interstitial diseases. Obstructive or reflux nephropathy, congenital renal artery stenosis, and arterial fibromuscular dysplasia are other identified causes. Furthermore, certain medications, drugs, or biological substances can lead to secondary hypertension. Congenital anomalies of the heart or great vessels may also be implicated.

Diagnostic Approaches for Secondary Hypertension

Diagnosing secondary hypertension involves a comprehensive medical evaluation. It is typically identified when blood pressure measurements consistently exceed 140/90 mmHg on multiple occasions and an underlying cause can be pinpointed. The diagnostic process focuses on identifying the specific condition responsible for the elevated blood pressure. This may involve a review of medical history, physical examination, and various laboratory tests, imaging studies, or other diagnostic procedures tailored to investigate potential underlying causes such as endocrine or renal abnormalities.

Managing Other Specified Secondary Hypertension

Effective management of other specified secondary hypertension centres on addressing the identified underlying cause. Since the origin is specific, treatment strategies aim to correct or manage this root condition, which can often lead to improved blood pressure control. The ICD-11 framework supports detailed coding by allowing post-coordination with codes for manifestations, such as hypertensive crisis (BA03), and specific causing conditions, providing a clearer picture for treatment planning and monitoring.

Alternative Names for Secondary Hypertension

Other specified secondary hypertension may be referred to by several clinical synonyms and related terms, reflecting its diverse origins. These can include terms such as: * Secondary hypertension associated with renal parenchymal disease * Renovascular hypertension * Hypertension due to drug therapy * Hypertension due to congenital adrenal hyperplasia * Liddle syndrome * Malignant renovascular hypertension

Coding and Documentation for BA04.Y

The ICD-11 code for Other specified secondary hypertension is BA04.Y. This code is used to report hypertension when a specific, identifiable cause has been determined but does not fall under more specific secondary hypertension categories. Accurate documentation is crucial, requiring the identification of the underlying condition contributing to the hypertension. ICD-11 facilitates detailed reporting through post-coordination, allowing coders to link BA04.Y with codes representing specific manifestations or the identified causing condition, thereby enhancing specificity for clinical and billing purposes.

Frequently asked questions

What is the ICD-11 classification meaning of BA04.Y?
BA04.Y is classified as 'Other specified secondary hypertension' within the ICD-11 system. It is used to denote secondary hypertension where the underlying cause is identified but does not fit into more specific categories within the BA04 block.
How is BA04.Y used in clinical coding?
BA04.Y is used when secondary hypertension has a specified cause that is not explicitly coded elsewhere in ICD-11. For instance, it may be used for conditions like renovascular hypertension when a more specific code is not available.
What is the distinction between BA04.Y and unspecified secondary hypertension in ICD-11?
BA04.Y, 'Other specified secondary hypertension', requires the cause to be identified and documented. Unspecified secondary hypertension, coded as BA04.Z, is used when the cause of secondary hypertension is not documented or known.
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