Is N02.B6 a billable ICD-10-CM code?

Yes. N02.B6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does N02.B6 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 N02.B6?

N02.B6 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N02.B6 (N02) and apply to it just the same.

N02.B6

N02.B6 — Recurrent and persistent immunoglobulin A nephropathy with diffuse mesangiocapillary glomerulonephritis

Billable / specific codeICD-10-CM

N02.B6 is a billable, specific ICD-10-CM code for recurrent and persistent immunoglobulin a nephropathy with diffuse mesangiocapillary glomerulonephritis. It is valid for submission on a claim.

Excludes1 inherited from the categories above N02.B6

These are not written on N02.B6, but they bind it: a note on a category applies to every code beneath it. Billing N02.B6 with anything listed here is a denial.

Written on N02 — Recurrent and persistent hematuria

acute cystitis with hematuria (N30.01)
hematuria NOS (R31.9)
hematuria not associated with specified morphologic lesions (R31.-)

Other codes that can never be billed with N02.B6

These codes carry an Excludes1 note pointing at N02.B6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N02.B6 alone.

R31Hematuria

Risk adjustment

N02.B6 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

N02.B6 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A59186Billing and Coding: Magnesium

How N02.B6 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 N02.B6.

Nephropathy›IgA›with›glomerulonephritis›mesangiocapillary(diffuse)

Code history

N02.B6 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share N02.B. If N02.B6 is not quite right, the correct code is usually one of these.

Questions about N02.B6

Is N02.B6 a billable ICD-10-CM code?: Yes. N02.B6 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N02.B6 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 N02.B6?: N02.B6 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N02.B6 (N02) and apply to it just the same.