Coding Hypertension (401-405)

Why This Topic Matters

Hypertension is a common diagnosis with multiple related categories and associated conditions, so accurate interpretation affects record abstraction, reporting, and consistency in coded data. This article helps readers understand the breadth of hypertension-related documentation issues discussed in an older ICD-9-CM coding reference.

Article Sections

1. Elevated Blood Pressure

   Discusses blood pressure readings, elevated blood pressure without a hypertension diagnosis, and anesthesia-related situations mentioned in the reference.

2. Benign and Malignant Hypertension

   Summarizes the classification of hypertension by severity status and discusses the role of documentation and external reporting terminology.

3. Hypertensive Disease

   Introduces the 401-405 hypertension category structure and the broader disease groupings addressed in the article.

4. Essential hypertension

   Covers the discussion of primary hypertension and related general concepts, including associated vascular findings.

5. Examples

   Provides sample scenarios illustrating how the article relates hypertension to other documented conditions.

6. Systolic hypertension

   Addresses systolic-pattern hypertension and how it is described across different patient groups.

7. Hypertensive heart disease

   Discusses the heart-related hypertension category, associated cardiac findings, and related documentation topics.

8. Hypertensive renal disease

   Covers the kidney-related hypertension category and the renal conditions mentioned in the reference.

9. Hypertensive heart and renal disease

   Describes the combined heart-and-kidney hypertension category and related review considerations.

10. Hypertension and the brain

    Discusses neurologic involvement associated with hypertension and related cerebrovascular topics.

11. Acute postoperative hypertension

    Addresses hypertension described in the postoperative setting and the general documentation issues raised by that context.

12. Should controlled hypertension be coded?

    Focuses on controlled hypertension as a documentation topic and its place within the hypertension category structure.

13. Secondary hypertension

    Introduces secondary hypertension and the broad group of underlying causes referenced in the article.

14. Hypertension, secondary due to:

    Lists example underlying conditions associated with secondary hypertension in the reference table.

15. Hypertension in pregnancy

    Covers pregnancy-related hypertension categories and the broader pregnancy-related distinctions mentioned in the article.