Hypertension ICD-10 codes
Start with the primary code, then move to a more specific related code when the documentation supports it.
I10 | Essential (primary) hypertension | ICD-10-CM |
I11.9 | Hypertensive heart disease without heart failure | ICD-10-CM |
I12.9 | Hypertensive chronic kidney disease, stage 1–4 or unspecified CKD Code also the CKD stage (N18.-) | ICD-10-CM |
I13.10 | Hypertensive heart and CKD without heart failure, stage 1–4 CKD | ICD-10-CM |
I15.9 | Secondary hypertension, unspecified Code also the underlying condition | ICD-10-CM |
R03.0 | Elevated blood-pressure reading, without diagnosis of hypertension | ICD-10-CM |
Use I10 only for essential hypertension without documented heart or kidney involvement. If hypertensive heart disease is documented, move to I11.-; with chronic kidney disease, I12.- plus the N18.- stage; with both, I13.-. A single elevated reading without a hypertension diagnosis is R03.0, not I10. Secondary hypertension (I15.-) requires coding the underlying cause.
“Follow-up for essential hypertension. Home readings averaging 148/92 despite lifestyle changes. No chest pain, no dyspnea. Renal function normal (eGFR 84). Increased amlodipine to 10 mg daily; review in 6 weeks.”
Paste a note or record audio. Notat’s FactsContext™ engine extracts the raw clinical facts first, then suggests codes from that context so you can inspect the evidence before using anything.
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I10ICD-10-CM
Essential (primary) hypertension
Tõend: “Chief Complaint Elevated and fluctuating blood pressure readings.”
E78.5ICD-10-CM
Hyperlipidemia, unspecified
Tõend: “2. Hyperlipidemia. Clinically stable on atorvastatin.”
M19.90ICD-10-CM
Unspecified osteoarthritis, unspecified site
Tõend: “3. Osteoarthritis. Symptoms stable. Continue conservative management with acetaminophen as needed.”
FactsContext extracts clinical facts first: diagnoses, symptoms, negatives, findings, test results, medications, and plan decisions.
The clinician can read and reuse the extracted medical context directly, independent of the generated note.
AI suggestions are not a substitute for clinician judgment, payer rules, local coding policy, or the official code set.
FAQ
When do I use I10 vs I11 or I12?
I10 covers essential hypertension alone. Once the documentation links hypertension to heart disease (I11.-) or chronic kidney disease (I12.-, plus an N18.- stage code), those combination codes replace I10.
What code do I use for an elevated reading without a diagnosis?
R03.0 — elevated blood-pressure reading without a diagnosis of hypertension. I10 requires an established diagnosis.
Can AI suggest hypertension codes from my note?
Yes. Notat’s FactsContext™ engine extracts the clinical facts from your note or consultation and suggests ICD-10 codes with the supporting evidence excerpt, for you to review and confirm.