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ICD-10-CM 2027 diagnosis code

P07.25Extreme immaturity of newborn, gestational age 26 completed weeks

✓ Billable / specific

P07.25 is a valid, billable ICD-10-CM code for extreme immaturity of newborn, gestational age 26 completed weeks. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Extreme immaturity of NB, gestatnl age 26 completed weeks

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 P07.25

P07.25 is the ICD-10-CM diagnosis code for extreme immaturity of newborn, gestational age 26 completed weeks. It belongs to category P07 (disorders of newborn related to short gestation and low birth weight, not elsewhere classified), block P05-P08 (disorders of newborn related to length of gestation and fetal growth) 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 P07.2 (extreme immaturity of newborn), P07.25 is specifically for extreme immaturity of newborn, gestational age 26 completed weeks. Related codes cover unspecified weeks of gestation (P07.20), gestational age less than 23 completed weeks (P07.21), gestational age 23 completed weeks (P07.22), gestational age 24 completed weeks (P07.23), gestational age 25 completed weeks (P07.24) and gestational age 27 completed weeks (P07.26).

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 790 (Extreme Immaturity or Respiratory Distress Syndrome, Neonate, relative weight 6.0146), 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 has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 765.23 (25-26 completed weeks of gestation).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Extreme immaturity of newborn, gestational age 26 weeks, 0 days through 26 weeks, 6 days

Notes that apply from higher levels

Instructions written at a parent level also apply to P07.25.

› From P07 Disorders of newborn related to short gestation and low birth weight, not elsewhere classified
Note
  • When both birth weight and gestational age of the newborn are available, both should be coded with birth weight sequenced before gestational age
Includes
  • the listed conditions, without further specification, as the cause of morbidity or additional care, in newborn

Broader instructions also apply from Chapter 16: Certain conditions originating in the perinatal period.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to P07.25.

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

ICD-9-CM equivalent

Converter →
  • 765.2325-26 completed weeks of gestationapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

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 P07.25

Is P07.25 billable?

Yes. P07.25 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can P07.25 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict P07.25 as a principal diagnosis.

Is P07.25 a CC or MCC?

No. P07.25 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does P07.25 group to?

P07.25 is used in the MS-DRG v44.0 logic for MS-DRG 790 (Extreme Immaturity or Respiratory Distress Syndrome, Neonate). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for P07.25?

The CMS General Equivalence Mappings map P07.25 to ICD-9-CM 765.23.