Is N06.20 a billable ICD-10-CM code?

Yes. N06.20 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does N06.20 sit in the tabular list?

Diseases of the genitourinary system (N00-N99), in the block Glomerular diseases (N00-N08).

What cannot be coded together with N06.20?

N06.20 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

N06.20

N06.20 — Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified

Billable / specific codeICD-10-CM

N06.20 is a billable, specific ICD-10-CM code for isolated proteinuria with diffuse membranous glomerulonephritis, unspecified. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

membranous nephropathy NOS with nephrotic syndrome (N04.20)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Membranous nephropathy, NOS

Risk adjustment

N06.20 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

N06.20 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A55336Billing and Coding: Retroperitoneal Ultrasound
A57189Billing and Coding: Serum Magnesium
A59186Billing and Coding: Magnesium

How N06.20 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N06.20.

Nephropathy›membranous(diffuse)
Proteinuria›isolated›with glomerular lesion›membranous(diffuse)

Related codes at this level

Codes that share N06.2. If N06.20 is not quite right, the correct code is usually one of these.

Questions about N06.20

Is N06.20 a billable ICD-10-CM code?: Yes. N06.20 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N06.20 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Glomerular diseases (N00-N08).
What cannot be coded together with N06.20?: N06.20 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.