Is N63 a billable ICD-10-CM code?

No. N63 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does N63 sit in the tabular list?

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

N63

N63 — Unspecified lump in breast

Non-billable headerICD-10-CMunspecified

N63 is a non-billable header ICD-10-CM code for unspecified lump in breast. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

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

Nodule(s) NOS in breast

Risk adjustment

N63 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 N63

5 child codes. Green means billable.

N63.0Unspecified lump in unspecified breast
N63.1Unspecified lump in the right breast
N63.2Unspecified lump in the left breast
N63.3Unspecified lump in axillary tail
N63.4Unspecified lump in breast, subareolar

Questions about N63

Is N63 a billable ICD-10-CM code?: No. N63 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does N63 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Disorders of breast (N60-N65).