O99.73 Diseases of the skin and subcutaneous tissue complicating the puerperium

Billable ICD-10-CM code, FY2026.

Applies from O99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

Includes

• conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care

Excludes2 (not included here)

• when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

Use additional code

• code to identify specific condition

Applies from O99.7 Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperium

Applicable to

• Conditions in L00-L99

Excludes2 (not included here)

• herpes gestationis (O26.4)
• pruritic urticarial papules and plaques of pregnancy (PUPPP) (O26.86)

MS-DRG index

Defines the logic of DRG(s) 769 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 648.94 Other current conditions classifiable elsewhere of mother, postpartum condition or complication (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Diagnosis Index entries for O99.73

• Puerperal, puerperium (complicated by, complications) › skin disorder NEC

Nearby codes

• O99.711 Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester
• O99.712 Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester
• O99.713 Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester
• O99.719 Diseases of the skin and subcutaneous tissue complicating pregnancy, unspecified trimester
• O99.72 Diseases of the skin and subcutaneous tissue complicating childbirth
• O99.73 Diseases of the skin and subcutaneous tissue complicating the puerperium (this code)
• O99.8 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium
• O99.81 Abnormal glucose complicating pregnancy, childbirth and the puerperium
• O99.810 Abnormal glucose complicating pregnancy
• O99.814 Abnormal glucose complicating childbirth
• O99.815 Abnormal glucose complicating the puerperium