Is N61 a billable ICD-10-CM code?

No. N61 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does N61 sit in the tabular list?

Diseases of the genitourinary system (N00-N99), in the block Disorders of breast (N60-N65).

What cannot be coded together with N61?

N61 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

N61

N61 — Inflammatory disorders of breast

Non-billable headerICD-10-CM

N61 is a non-billable header ICD-10-CM code for inflammatory disorders of breast. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

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

inflammatory carcinoma of breast (C50.A-)
inflammatory disorder of breast associated with childbirth (O91.-)
neonatal infective mastitis (P39.0)
thrombophlebitis of breast [Mondor's disease] (I80.8)

Risk adjustment

N61 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.

Code to one of these instead N61

3 child codes. Green means billable.

Questions about N61

Is N61 a billable ICD-10-CM code?: No. N61 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does N61 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Disorders of breast (N60-N65).
What cannot be coded together with N61?: N61 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.