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FY2027 ICD-10-CM reference

I12: Hypertensive chronic kidney disease

By the HCC Buddy Coding Team

The official ICD-10-CM descriptor is Hypertensive chronic kidney disease. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Nonbillable heading. Verified against the official FY2027 order file.

Oct to Dec 2026, PY2027

CMS-HCC V28

Not applicable

Choose a billable child code.

CMS-HCC V24

Not applicable

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ESRD

Not applicable

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RxHCC

Not applicable

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PACE (CMS-HCC V22 component)

Not applicable

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PACE ESRD (ESRD V21 component)

Not applicable

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PACE RxHCC (2018/2019 component)

Not applicable

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Jan to Sep 2027, PY2028

CMS-HCC V28

Not applicable

Choose a billable child code.

CMS-HCC V24

Not applicable

Choose a billable child code.

ESRD

Not applicable

Choose a billable child code.

RxHCC

Not applicable

Choose a billable child code.

PACE (CMS-HCC V22 component)

Not applicable

Choose a billable child code.

PACE ESRD (ESRD V21 component)

Not applicable

Choose a billable child code.

PACE RxHCC component

Not applicable

Choose a billable child code.

Oct to Dec 2026, BY2026

HHS-HCC

Not applicable

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Jan to Sep 2027, BY2027

HHS-HCC

Not applicable

Choose a billable child code.

More specific FY2027 codes

FY2027 Tabular instructions

Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.

Excludes2

certain conditions originating in the perinatal period (P04-P96)

Source: I00-I99 (chapter, inherited).

Excludes2

certain infectious and parasitic diseases (A00-B99)

Source: I00-I99 (chapter, inherited).

Excludes2

complications of pregnancy, childbirth and the puerperium (O00-O9A)

Source: I00-I99 (chapter, inherited).

Excludes2

congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)

Source: I00-I99 (chapter, inherited).

Excludes2

endocrine, nutritional and metabolic diseases (E00-E88)

Source: I00-I99 (chapter, inherited).

Excludes2

injury, poisoning and certain other consequences of external causes (S00-T88)

Source: I00-I99 (chapter, inherited).

Excludes2

neoplasms (C00-D49)

Source: I00-I99 (chapter, inherited).

Excludes2

symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: I00-I99 (chapter, inherited).

Excludes2

systemic connective tissue disorders (M30-M36)

Source: I00-I99 (chapter, inherited).

Excludes2

transient cerebral ischemic attacks and related syndromes (G45.-)

Source: I00-I99 (chapter, inherited).

Instructional note

code to identify:

Source: I10-I1A (section, inherited).

Instructional note

exposure to environmental tobacco smoke (Z77.22)

Source: I10-I1A (section, inherited).

Instructional note

history of tobacco dependence (Z87.891)

Source: I10-I1A (section, inherited).

Instructional note

occupational exposure to environmental tobacco smoke (Z57.31)

Source: I10-I1A (section, inherited).

Instructional note

tobacco dependence (F17.-)

Source: I10-I1A (section, inherited).

Instructional note

tobacco use (Z72.0)

Source: I10-I1A (section, inherited).

Excludes1

neonatal hypertension (P29.2)

Source: I10-I1A (section, inherited).

Excludes1

primary pulmonary hypertension (I27.0)

Source: I10-I1A (section, inherited).

Excludes2

hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)

Source: I10-I1A (section, inherited).

Includes

any condition in N18 and N26 - due to hypertension

Source: I12 (category, direct).

Includes

arteriosclerosis of kidney

Source: I12 (category, direct).

Includes

arteriosclerotic nephritis (chronic) (interstitial)

Source: I12 (category, direct).

Includes

hypertensive nephropathy

Source: I12 (category, direct).

Includes

nephrosclerosis

Source: I12 (category, direct).

Excludes1

hypertension due to kidney disease (I15.0, I15.1)

Source: I12 (category, direct).

Excludes1

renovascular hypertension (I15.0)

Source: I12 (category, direct).

Excludes1

secondary hypertension (I15.-)

Source: I12 (category, direct).

Excludes2

acute kidney failure (N17.-)

Source: I12 (category, direct).

Source: CMS FY2027 Tabular List and Alphabetic Index.

Open Tabular instructions and code details

Compare the FY2027 additions, removals and billable-status changes

What does I12 mean in FY2027?

The official ICD-10-CM descriptor is Hypertensive chronic kidney disease. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.

Is I12 billable in FY2027?

The FY2027 order file marks I12 as a nonbillable heading. Select a complete billable child code.

Does I12 map to an HCC?

Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.

Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.

Review the FY2026 April edition