ICDcodes.org
FY2027

I12Hypertensive chronic kidney disease

Not billable

Is I12 billable?

No — I12 is a non-billable header code. I12 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 2 billable codes beneath I12.

I12 at a glance

CodeI12
DescriptionHypertensive chronic kidney disease
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with I12 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • hypertension due to kidney disease (I15.0, I15.1)
  • renovascular hypertension (I15.0)
  • secondary hypertension (I15.-)

Excludes2 — not included here

The conditions below are not part of I12, but a patient may have both at the same time. When documentation supports it, I12 and the excluded code may both be reported.

  • acute kidney failure (N17.-)

Includes

Conditions classified to I12.

  • any condition in N18 and N26 - due to hypertension
  • arteriosclerosis of kidney
  • arteriosclerotic nephritis (chronic) (interstitial)
  • hypertensive nephropathy
  • nephrosclerosis

Excludes1 — never code together — inherited from I10-I1A

The conditions below can never be reported together with I12 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)

Use additional code — inherited from I10-I1A

Report an additional code alongside I12 to fully describe the condition. I12 is sequenced first.

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Excludes2 — not included here — inherited from Chapter 9

The conditions below are not part of I12, but a patient may have both at the same time. When documentation supports it, I12 and the excluded code may both be reported.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Excludes2 — not included here — inherited from I10-I1A

The conditions below are not part of I12, but a patient may have both at the same time. When documentation supports it, I12 and the excluded code may both be reported.

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

What codes fall under I12? (2)

How long has I12 existed?

I12 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with I12?

ICD-10-CM declares these codes mutually exclusive with I12 — exactly one of each pair can be correct for a given encounter.