ICD-10 I12
Non-Billable HeaderHypertensive chronic kidney disease
About ICD-10-CM I12
ICD-10-CM code I12 represents Hypertensive chronic kidney disease. This is a non-billable header code in the Circulatory System chapter (block I12). The 2026 edition of ICD-10-CM I12 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with I12. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- hypertension due to kidney disease (I15.0, I15.1)
- renovascular hypertension (I15.0)
- secondary hypertension (I15.-)
Type 2 Excludes
Not included here, the excluded code is not part of I12, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- acute kidney failure (N17.-)
Includes
- any condition in N18 and N26 - due to hypertension
- arteriosclerosis of kidney
- arteriosclerotic nephritis (chronic) (interstitial)
- hypertensive nephropathy
- nephrosclerosis
Medicare LCD Coverage for I12
Local Coverage Determinations (LCDs) from CMS MACs that list I12 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I12.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but I12 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with I12
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
Codes Adjacent To I12
Other codes in section I10-I1A (Hypertensive diseases).
ICD-10 I12, Billing FAQ
Is ICD-10 code I12 billable? +
No, I12 is a non-billable header code. Use a more specific child code from block I12 when submitting claims.
What codes are Type 1 Excludes for I12? +
Type 1 Excludes (never code together with I12): hypertension due to kidney disease (I15.0, I15.1); renovascular hypertension (I15.0); secondary hypertension (I15.-)
What codes are Type 2 Excludes for I12? +
Type 2 Excludes (may be coded together when both conditions exist): acute kidney failure (N17.-)
What CPT codes are commonly billed with I12? +
Procedures frequently paired with I12 include: 99213, 99214, 99215.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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