O23.0 Infections of kidney in pregnancy

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Infections of kidney in pregnancy is O23.0 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
O20-O29: Other maternal disorders predominantly related to pregnancy (O20-O29)
Category O23
47 codes (36 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to O23.0:

  • Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › pyelitis
  • Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › infection (s) › kidney

Inclusion Terms

  • Pyelonephritis in pregnancy

References

Related Codes

Parent Code

O23 Infections of genitourinary tract in pregnancy

More Specific Codes

O23.00 Infections of kidney in pregnancy, unspecified trimester O23.01 Infections of kidney in pregnancy, first trimester O23.02 Infections of kidney in pregnancy, second trimester O23.03 Infections of kidney in pregnancy, third trimester

Related Codes in O23

O23 Infections of genitourinary tract in pregnancy O23.00 Infections of kidney in pregnancy, unspecified trimester O23.01 Infections of kidney in pregnancy, first trimester O23.02 Infections of kidney in pregnancy, second trimester O23.03 Infections of kidney in pregnancy, third trimester O23.1 Infections of bladder in pregnancy O23.10 Infections of bladder in pregnancy, unspecified trimester O23.11 Infections of bladder in pregnancy, first trimester O23.12 Infections of bladder in pregnancy, second trimester O23.13 Infections of bladder in pregnancy, third trimester O23.2 Infections of urethra in pregnancy O23.20 Infections of urethra in pregnancy, unspecified trimester O23.21 Infections of urethra in pregnancy, first trimester O23.22 Infections of urethra in pregnancy, second trimester O23.23 Infections of urethra in pregnancy, third trimester O23.3 Infections of other parts of urinary tract in pregnancy O23.30 Infections of other parts of urinary tract in pregnancy, unspecified trimester O23.31 Infections of other parts of urinary tract in pregnancy, first trimester O23.32 Infections of other parts of urinary tract in pregnancy, second trimester O23.33 Infections of other parts of urinary tract in pregnancy, third trimester
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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