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ICD-10-CM 2027 diagnosis code

P39Other infections specific to the perinatal period

Not billable — use a more specific code

P39 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About P39

P39 is the ICD-10-CM diagnosis code for other infections specific to the perinatal period. It belongs to block P35-P39 (infections specific to the perinatal period) and chapter 16 (certain conditions originating in the perinatal period). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: P39.0 (mastitis), P39.1 (dacryocystitis), P39.2 (classified), P39.3 (infection), P39.4 (infection), P39.8 (period) and P39.9 (unspecified).

Use an additional code to identify organism or specific infection.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under P39

Coding notes

Use additional codeAdd a secondary code to fully describe the condition
  • code to identify organism or specific infection

Notes that apply from higher levels

Instructions written at a parent level also apply to P39.

Broader instructions also apply from P35-P39 Infections specific to the perinatal period and Chapter 16: Certain conditions originating in the perinatal period.

Codes whose notes reference P39

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about P39

Is P39 billable?

No. P39 is a header code. Report one of its more specific subcodes instead.