D39.2 Neoplasm of uncertain behavior of placenta

Billable ICD-10-CM code, FY2026.

Applicable to

• Chorioadenoma destruens
• Invasive hydatidiform mole
• Malignant hydatidiform mole

Excludes1 (never code together)

• hydatidiform mole NOS (O01.9)

MS-DRG index

Defines the logic of DRG(s) 736-741 in MDC 13.

Approximate ICD-9-CM (GEMs)

• 236.1 Neoplasm of uncertain behavior of placenta

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.

Code annotations containing back-references to D39.2

Back-references to D39.2

• Type 1 Excludes: C58 Malignant neoplasm of placenta ("chorioadenoma (destruens) (D39.2)")
• Type 1 Excludes: C58 Malignant neoplasm of placenta ("invasive hydatidiform mole (D39.2)")
• Type 1 Excludes: C58 Malignant neoplasm of placenta ("malignant hydatidiform mole (D39.2)")
• Type 1 Excludes: O01 Hydatidiform mole ("chorioadenoma (destruens) (D39.2)")
• Type 1 Excludes: O01 Hydatidiform mole ("malignant hydatidiform mole (D39.2)")

Back-references to D39

• Type 1 Excludes: D49 Neoplasms of unspecified behavior ("neoplasms of uncertain behavior (D37-D44, D48)")

Diagnosis Index entries for D39.2

• Chorioadenoma (destruens)
• Hydatidiform mole (benign) (complicating pregnancy) (delivered) (undelivered) › invasive
• Hydatidiform mole (benign) (complicating pregnancy) (delivered) (undelivered) › malignant
• Mola destruens
• Mole (pigmented) › destructive
• Mole (pigmented) › hydatid, hydatidiform (benign) (complicating pregnancy) (delivered) (undelivered) › invasive
• Mole (pigmented) › hydatid, hydatidiform (benign) (complicating pregnancy) (delivered) (undelivered) › malignant
• Mole (pigmented) › invasive (hydatidiform)
• Mole (pigmented) › malignant › meaning › malignant hydatidiform mole
• Tumor › placental site trophoblastic
• Tumor › trophoblastic, placental site

Nearby codes

• D39.0 Neoplasm of uncertain behavior of uterus
• D39.1 Neoplasm of uncertain behavior of ovary
• D39.10 Neoplasm of uncertain behavior of unspecified ovary
• D39.11 Neoplasm of uncertain behavior of right ovary
• D39.12 Neoplasm of uncertain behavior of left ovary
• D39.2 Neoplasm of uncertain behavior of placenta (this code)
• D39.8 Neoplasm of uncertain behavior of other specified female genital organs
• D39.9 Neoplasm of uncertain behavior of female genital organ, unspecified