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ICD-10-CM 2027 diagnosis code

P02.78Newborn affected by other conditions from chorioamnionitis

✓ Billable / specific

P02.78 is a valid, billable ICD-10-CM code for newborn affected by other conditions from chorioamnionitis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2019 (effective October 1, 2018). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About P02.78

P02.78 is the ICD-10-CM diagnosis code for newborn affected by other conditions from chorioamnionitis. It belongs to category P02 (newborn affected by complications of placenta, cord and membranes), block P00-P04 (newborn affected by maternal factors and by complications of pregnancy, labor, and delivery) and chapter 16 (certain conditions originating in the perinatal period). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within P02.7, choose P02.78 (other conditions from chorioamnionitis) only when documentation doesn't support a more specific option: fetal inflammatory response syndrome (P02.70).

Code first: any current condition in newborn.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 794 (Neonate with Other Significant Problems, relative weight 1.4935), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2019, effective October 1, 2018.

Coding notes

Applicable toConditions and synonyms classified to this code
  • Newborn affected by amnionitis
  • Newborn affected by membranitis
  • Newborn affected by placentitis

Notes that apply from higher levels

Instructions written at a parent level also apply to P02.78.

› From P02 Newborn affected by complications of placenta, cord and membranes
Excludes2
  • encounter for observation of newborn for suspected diseases and conditions ruled out (Z05.-)
Code first
  • any current condition in newborn

Broader instructions also apply from P00-P04 Newborn affected by maternal factors and by complications of pregnancy, labor, and delivery and Chapter 16: Certain conditions originating in the perinatal period.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to P02.78.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2019 (effective 10/1/2018): Added
  • No changes since FY2019.

Common questions about P02.78

Is P02.78 billable?

Yes. P02.78 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can P02.78 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict P02.78 as a principal diagnosis.

Is P02.78 a CC or MCC?

No. P02.78 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does P02.78 group to?

P02.78 is used in the MS-DRG v44.0 logic for MS-DRG 794 (Neonate with Other Significant Problems). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.