N06 — Isolated proteinuria with specified morphological lesion

Not billable

Is N06 billable?

No — N06 is a non-billable header code. N06 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 14 billable codes beneath N06.

Billable codes under this header

N06 at a glance

Code	N06
Description	Isolated proteinuria with specified morphological lesion
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with N06 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Proteinuria not associated with specific morphologic lesions (R80.0)

Excludes1 — never code together — inherited from N00-N08

The conditions below can never be reported together with N06 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

hypertensive chronic kidney disease (I12.-)

Excludes2 — not included here — inherited from Chapter 14

The conditions below are not part of N06, but a patient may have both at the same time. When documentation supports it, N06 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)

Code also — inherited from N00-N08

Two codes may be needed to describe the condition fully. Whether N06 is sequenced first depends on the reason for the encounter.

any associated kidney failure (N17-N19).

What codes fall under N06? (11)

How long has N06 existed?

N06 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 N06?

ICD-10-CM declares these codes mutually exclusive with N06 — exactly one of each pair can be correct for a given encounter.

vs R80.0Isolated proteinuria