MCMCB Pro
P00.89

P00.89Newborn affected by other maternal conditions

Billable / specific codeICD-10-CMPOA exempt

P00.89 is a billable, specific ICD-10-CM code for newborn affected by other maternal conditions. It is valid for submission on a claim.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • newborn affected by positive maternal group B streptococcus (GBS) colonization (P00.82)

Use additional code

Add a secondary code to capture the detail described below.

  • code to identify infectious agent, if known

Inclusion terms

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

  • Newborn affected by conditions classifiable to T80-T88
  • Newborn affected by maternal genital tract or other localized infections
  • Newborn affected by maternal systemic lupus erythematosus

Risk adjustment

P00.89 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

P00.89 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.

  • A57189Billing and Coding: Serum Magnesium

How P00.89 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 P00.89.

  • Newbornaffected bymaternalconditionspecified NEC
  • Newbornaffected bymaternaldisorderspecified NEC

Related codes at this level

Codes that share P00.8. If P00.89 is not quite right, the correct code is usually one of these.

Questions about P00.89

Is P00.89 a billable ICD-10-CM code?
Yes. P00.89 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does P00.89 sit in the tabular list?
Certain conditions originating in the perinatal period (P00-P96), in the block Newborn affected by maternal factors and by complications of pregnancy, labor, and delivery (P00-P04).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.