2027 ICD-10-CM Diagnosis Code P39.8Other specified infections specific to the perinatal period
ICD-10-CM Codes›P00–P96›P35-P39›P39
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
P39.8 is a billable ICD-10-CM diagnosis code for other specified infections specific to the perinatal period. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 46 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Perinatal infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute infectious tubulointerstitial nephritis
- Acute necrotizing stomatitis
- Acute nephritis due to another disorder
- Acute pyelonephritis
- Acute tubulointerstitial nephritis
- Acute tubulointerstitial nephritis associated with systemic infection
- Acute tubulo-interstitial nephritis due to immunological disorder
- Cancrum oris
- Epilepsy due to infectious disease of central nervous system
- Epilepsy due to neonatal central nervous system infection
- Fetal and/or neonatal perinatal infection of skin and subcutaneous tissue
- Infantile streptococcal infection
- Infection caused by coagulase-negative Staphylococcus
- Neonatal coxsackie virus syndrome
- Neonatal disorder of oral mucosa
- Neonatal infection caused by Aspergillus
- Neonatal infective tracheitis
- Neonatal necrotizing fasciitis
- Neonatal necrotizing fasciitis caused by Streptococcus
- Neonatal pseudomonas infection
- Neonatal sepsis caused by Malassezia
- Neonatal staphylococcal necrotizing fasciitis
- Neonatal streptococcal infection
- Noma neonatorum
- Perianal streptococcal infection of newborn
- Perinatal coagulase-negative staphylococcus
- Perinatal staphylococcal infection
- Pyelonephritis associated with another disorder
- Sepsis caused by fungus
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to P39.8: its own notes plus those printed at P39, block P35-P39, and Chapter 16. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
- congenital gonococcal infection (A54.-)
- congenital pneumonia (P23.-)
- congenital syphilis (A50.-)
- human immunodeficiency virus [HIV] disease (B20)
- infant botulism (A48.51)
- infectious diseases not specific to the perinatal period (A00-B99, J09, J10.-)
- intestinal infectious disease (A00-A09)
- laboratory evidence of human immunodeficiency virus [HIV] (R75)
- tetanus neonatorum (A33)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify organism or specific infection
Notes
General instructions on how these codes are used.
- Codes from this chapter are for use on newborn records only, never on maternal records
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name P39.8, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming P39.8: its condition is not part of those codes, and both may be reported when the patient has both.
- Chapter 1 (A00-B99) Certain infectious and parasitic diseases
- P00.2 Newborn affected by maternal infectious and parasitic diseases
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Infectious Diseases
Germs, or microbes, are found everywhere - in the air, soil, and water. There are also germs on your skin and in your body. Many of them are harmless, and some can even be helpful. But some of them can make you sick. Infectious diseases are diseases that are caused by germs.
The full article covers:
- What are infectious diseases?
- What are the different types of germs that cause infectious diseases?
- How can you get infectious diseases?
- What are the symptoms of infectious diseases?
- What are the treatments for infectious diseases?
- Can infectious diseases be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P39.8 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P39.8Overview
What is the ICD-10 code for other specified infections specific to the perinatal period?
The ICD-10-CM code for other specified infections specific to the perinatal period is P39.8 (sometimes written as P398). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is P39.8 (Other infections specific to the perinatal period) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified infections specific to the perinatal period on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does P39.8 group to?
When other specified infections specific to the perinatal period is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, with relative weights from 4.1073 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.
Is P39.8 a CC or MCC?
CMS lists P39.8 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 46 closely related codes in its exclusion list.
Does P39.8 need an additional code?
When the condition applies, yes. The Use Additional Code note at P39, which applies to P39.8, reads: code to identify organism or specific infection. The additional code is reported after P39.8.
