O10.9

Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium

Non-billable header

O10.9 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes (from O10)

  • pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium
  • Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Note: Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • Note: 1st trimester- less than 14 weeks 0 days
  • Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • Note: 3rd trimester- 28 weeks 0 days until delivery

Excludes1

Not coded here — never report together with this code.

  • supervision of normal pregnancy (Z34.-) (from O10)

Excludes2

Not included here — may be reported together when both conditions exist.

  • mental and behavioral disorders associated with the puerperium (F53.-) (from O10)
  • obstetrical tetanus (A34) (from O10)
  • postpartum necrosis of pituitary gland (E23.0) (from O10)
  • puerperal osteomalacia (M83.0) (from O10)
  • pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-) (from O10)

Use additional code

Add a code to identify the following, if applicable.

  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known. (from O10)

Parent code

  • O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperiumHeader

More specific codes O10.9

  • O10.91Unspecified pre-existing hypertension complicating pregnancyHeader
  • O10.92Unspecified pre-existing hypertension complicating childbirthBillable
  • O10.93Unspecified pre-existing hypertension complicating the puerperiumBillable

Related codes

  • O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperiumHeader
  • O10.1Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperiumHeader
  • O10.2Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperiumHeader
  • O10.3Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperiumHeader
  • O10.4Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperiumHeader

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