kodex

Kodex

ICD-10-CM
Code

O11.9

Pre-existing hypertension with pre-eclampsia, unspecified trimester

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Hierarchy

  • O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
    • O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
      • O11 Pre-existing hypertension with pre-eclampsia
        • O11.1 Pre-existing hypertension with pre-eclampsia, first trimester
        • O11.2 Pre-existing hypertension with pre-eclampsia, second trimester
        • O11.3 Pre-existing hypertension with pre-eclampsia, third trimester
        • O11.4 Pre-existing hypertension with pre-eclampsia, complicating childbirth
        • O11.5 Pre-existing hypertension with pre-eclampsia, complicating the puerperium
        • O11.9 Pre-existing hypertension with pre-eclampsia, unspecified trimester

Notes

O00-O9A

  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • 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)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Use Additional

O11

  • code from O10 to identify the type of hypertension

O00-O9A

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

Includes

O11

  • conditions in O10 complicated by pre-eclampsia
  • pre-eclampsia superimposed pre-existing hypertension

Excludes 1

O00-O9A

  • supervision of normal pregnancy (Z34.-)
    • Z34 Encounter for supervision of normal pregnancy

Excludes 2

O00-O9A

  • mental and behavioral disorders associated with the puerperium (F53.-)
    • F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified
  • A34 Obstetrical tetanus
  • postpartum necrosis of pituitary gland (E23.0)
  • M83.0 Puerperal osteomalacia