O99.73 ICD-10-CM Code: Diseases of the skin and subcutaneous tissue complicating the puerperium
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Pregnancy, childbirth and the puerperium (O00-O9A) / Other obstetric conditions, not elsewhere classified (O94-O9A)
O99.73
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceDiseases of the skin and subcutaneous tissue complicating the puerperium
A skin or subcutaneous tissue disease occurring during the postpartum period following delivery.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
MappedHCC 209
Varies by metal level
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Conditions in L00-L99
Excludes 2
Official- herpes gestationis (O26.4)
- pruritic urticarial papules and plaques of pregnancy (PUPPP) (O26.86)
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for O99.73 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for O99.73 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for O99.73 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for O99.73 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for O99.73 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 O99.73 an HCC code?
No. O99.73 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- O99.73
- Description
- Diseases of the skin and subcutaneous tissue complicating the puerperium
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
Get the V28 RAF + MEAT cheat sheet
One printable page: confirm a code's V28 HCC status, its RAF weight, and the MEAT your note needs to make it stick. Free, no card.
Free PDF. No card. Unsubscribe anytime.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
O99.73 is the ICD-10-CM diagnosis code for diseases of the skin and subcutaneous tissue complicating the puerperium. A skin or subcutaneous tissue disease occurring during the postpartum period following delivery. O99.73 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering other obstetric conditions, not elsewhere classified (o94-o9a).
O99.73 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.
The puerperium extends approximately 6 weeks after delivery; confirm timing in clinical documentation.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O99.73 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •The puerperium extends approximately 6 weeks after delivery; confirm timing in clinical documentation
- •Requires an additional code to identify the specific skin condition present