ICDcodes.org
FY2027

O10.319 — Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester

BillableUnspecified

Is O10.319 billable?

Yes, but O10.319 is an unspecified code. O10.319 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O10.319 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting O10.319 — the more specific alternatives are listed below.

O10.319 at a glance

CodeO10.319
DescriptionPre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does O10.319 group to?

O10.319 sits in MDC 14 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 817Other Antepartum Diagnoses with O.R. Procedures with MCCsurgical
  • 818Other Antepartum Diagnoses with O.R. Procedures with CCsurgical
  • 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCCsurgical

How is O10.319 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under O10.31, the nearest indexed parent of O10.319. Use them to find the family, then select the specific code.

  • Hypertension, hypertensive › complicating › pregnancy › pre-existing › with › heart disease › with renal disease (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
  • Hypertension, hypertensive › complicating › pregnancy › pre-existing › with › renal disease › with heart disease (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)

Excludes1 — never code together — inherited from Chapter 15

The conditions below can never be reported together with O10.319 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • supervision of normal pregnancy (Z34.-)

Use additional code — inherited from Chapter 15

Report an additional code alongside O10.319 to fully describe the condition. O10.319 is sequenced first.

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

Use additional code — inherited from O10.3

Report an additional code alongside O10.319 to fully describe the condition. O10.319 is sequenced first.

  • code from I13 to identify the type of hypertensive heart and chronic kidney disease

Excludes2 — not included here — inherited from Chapter 15

The conditions below are not part of O10.319, but a patient may have both at the same time. When documentation supports it, O10.319 and the excluded code may both be reported.

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Excludes2 — not included here — inherited from O10

The conditions below are not part of O10.319, but a patient may have both at the same time. When documentation supports it, O10.319 and the excluded code may both be reported.

  • pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)

How long has O10.319 existed?

O10.319 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the O10.31 family? (3)