Is P83.4 a billable ICD-10-CM code?

Yes. P83.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does P83.4 sit in the tabular list?

Certain conditions originating in the perinatal period (P00-P96), in the block Conditions involving the integument and temperature regulation of newborn (P80-P83).

What cannot be coded together with P83.4?

P83.4 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 P83.4 (P83) and apply to it just the same.

P83.4

P83.4 — Breast engorgement of newborn

Billable / specific codeICD-10-CM

P83.4 is a billable, specific ICD-10-CM code for breast engorgement of newborn. It is valid for submission on a claim.

Inclusion terms

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

Noninfective mastitis of newborn

Excludes1 inherited from the categories above P83.4

These are not written on P83.4, but they bind it: a note on a category applies to every code beneath it. Billing P83.4 with anything listed here is a denial.

Written on P83 — Other conditions of integument specific to newborn

congenital malformations of skin and integument (Q80-Q84)
hydrops fetalis due to hemolytic disease (P56.-)
neonatal skin infection (P39.4)
staphylococcal scalded skin syndrome (L00)

Excludes2 inherited from the categories above P83.4

Also inherited, and the opposite of Excludes1: these conditions are not part of P83.4, but a patient can have both, so you may code both.

Written on P83 — Other conditions of integument specific to newborn

cradle cap (L21.0)
diaper [napkin] dermatitis (L22)

Other codes that can never be billed with P83.4

These codes carry an Excludes1 note pointing at P83.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P83.4 alone.

N62Hypertrophy of breast
P39.0Neonatal infective mastitis

Risk adjustment

P83.4 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.

How P83.4 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 P83.4.

Mastitis›neonatal(noninfective)
Newborn›breast engorgement
Engorgement›breast›newborn
Hypertrophy, hypertrophic›breast›newborn
Newborn›mastitis›noninfective

Code history

P83.4 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 P83. If P83.4 is not quite right, the correct code is usually one of these.

Questions about P83.4

Is P83.4 a billable ICD-10-CM code?: Yes. P83.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does P83.4 sit in the tabular list?: Certain conditions originating in the perinatal period (P00-P96), in the block Conditions involving the integument and temperature regulation of newborn (P80-P83).
What cannot be coded together with P83.4?: P83.4 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 P83.4 (P83) and apply to it just the same.