ICD-10 I10: Essential (primary) hypertension
Adults with elevated BP not attributable to a secondary cause. Most common chronic diagnosis in US primary care.
Clinical context
Adults with elevated BP not attributable to a secondary cause. Most common chronic diagnosis in US primary care.
Documentation requirements
- BP measurements at multiple visits documenting elevation
- Exclusion of secondary causes (renovascular, endocrine)
- Treatment plan or medication management documented
Common related procedures
- 99213-99215 office E&M
- 93000 ECG
- 80061 lipid panel
- 82570 creatinine
Common payer denial patterns
- Routine office visit denied as 'preventive' when E&M for HTN management should be reported with modifier 25 if billed with G0438/G0439 AWV
- ABPM (93784) denied without 24-hour home/ambulatory monitoring documentation
Frequently asked questions
What does ICD-10 I10 mean?
Essential (primary) hypertension
When is this code documented?
Adults with elevated BP not attributable to a secondary cause. Most common chronic diagnosis in US primary care.
What documentation supports this code?
BP measurements at multiple visits documenting elevation; Exclusion of secondary causes (renovascular, endocrine); Treatment plan or medication management documented.
What are common denials associated with this diagnosis?
Routine office visit denied as 'preventive' when E&M for HTN management should be reported with modifier 25 if billed with G0438/G0439 AWV; ABPM (93784) denied without 24-hour home/ambulatory monitoring documentation.
Related diagnoses
- I11.9 — Hypertensive heart disease without heart failure
- I12.9 — Hypertensive chronic kidney disease with stage 1-4 CKD
- I13.10 — Hypertensive heart and CKD without HF, stage 1-4
- I15.9 — Secondary hypertension, unspecified
- I20.9 — Angina pectoris, unspecified
- I21.9 — Acute myocardial infarction, unspecified
Sources
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