P07.37 ICD-10-CM Code: Preterm newborn, gestational age 34 completed weeks
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FY 2026 Apr update / Certain conditions originating in the perinatal period (P00-P96) / Disorders of newborn related to length of gestation and fetal growth (P05-P08)
P07.37
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePreterm newborn, gestational age 34 completed weeks
A baby born before 37 weeks of pregnancy, specifically at 34 completed weeks of gestation. These late preterm infants are generally more stable but may still need respiratory support.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
MappedHCC 247
Varies by metal level
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Preterm newborn, gestational age 34 weeks, 0 days through 34 weeks, 6 days
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for P07.37 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for P07.37 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for P07.37 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for P07.37 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for P07.37 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for P07.37 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is P07.37 an HCC code?
No. P07.37 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- P07.37
- Description
- Preterm newborn, gestational age 34 completed weeks
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
P07.37 is the ICD-10-CM diagnosis code for preterm newborn, gestational age 34 completed weeks. A baby born before 37 weeks of pregnancy, specifically at 34 completed weeks of gestation. These late preterm infants are generally more stable but may still need respiratory support. P07.37 sits in the ICD-10-CM chapter for certain conditions originating in the perinatal period (p00-p96), within the section covering disorders of newborn related to length of gestation and fetal growth (p05-p08).
P07.37 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Late preterm infants (34-36 weeks) may have fewer complications but still require monitoring.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for P07.37 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Late preterm infants (34-36 weeks) may have fewer complications but still require monitoring
- •Document gestational age from obstetric records to ensure accurate code selection