N74Billable, valid for claims from October 1, 2026

Female pelvic inflammatory disorders in diseases classified elsewhere

In Inflammatory diseases of female pelvic organs (N70-N77), chapter 14: Diseases of the Genitourinary System

  • N74 is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under N70-N77 below.
  • As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.
  • Doesn't count toward a Medicare Advantage risk score (no HCC in V28).
  • AHRQ's Chronic Condition Indicator classes it as not chronic (an acute or short-term condition).
  • Can't be the principal diagnosis: code the underlying condition first. (Manifestation list)

Also indexed as: Disorder, inflammatory, pelvic, in diseases classified elsewhere

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Instructional notes

Excludes1: not coded here, use a different code

  • chlamydial cervicitis (A56.02)
  • chlamydial pelvic inflammatory disease (A56.11)
  • gonococcal cervicitis (A54.03)
  • gonococcal pelvic inflammatory disease (A54.24)
  • herpesviral [herpes simplex] cervicitis (A60.03)
  • herpesviral [herpes simplex] pelvic inflammatory disease (A60.09)
  • syphilitic cervicitis (A52.76)
  • syphilitic pelvic inflammatory disease (A52.76)
  • trichomonal cervicitis (A59.09)
  • tuberculous cervicitis (A18.16)
  • tuberculous pelvic inflammatory disease (A18.17)

Code first: code the underlying condition first, then this code

  • underlying disease

Also applies, from Inflammatory diseases of female pelvic organs (N70-N77)

These notes sit on N70-N77 and apply to every code under it, including N74.

Excludes1: not coded here, use a different code

  • inflammatory diseases of female pelvic organs complicating:
  • abortion or ectopic or molar pregnancy (O00-O07, O08.0)
  • pregnancy, childbirth and the puerperium (O23.-, O75.3, O85, O86.-)

Code also: add a code for this too, order depends on the encounter

  • if applicable, pelvic abscess (K6A.0-)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers chronic kidney disease staging, CKD in kidney transplant patients, and sequencing CKD with related conditions such as diabetes and hypertension.

Read Section I.C.14 (page 62)

N74 MS-DRGs

As the principal diagnosis, N74 groups to MS-DRG 742, 743, 757, 758, or 759 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Related conditions

Grouped by AHRQ's Clinical Classifications Software Refined (CCSR), which sorts every diagnosis code into clinically meaningful categories.

N74 is in Inflammatory diseases of female pelvic organs (GEN018), with 63 codes. Others in it:

  • A18.16 Tuberculosis of cervix
  • A18.17 Tuberculous female pelvic inflammatory disease
  • A18.18 Tuberculosis of other female genital organs
  • A51.42 Secondary syphilitic female pelvic disease
  • A54.02 Gonococcal vulvovaginitis, unspecified
  • A54.03 Gonococcal cervicitis, unspecified
  • A54.24 Gonococcal female pelvic inflammatory disease
  • A56.02 Chlamydial vulvovaginitis

Medicare coverage articles listing N74

This Medicare billing and coding article lists N74 as a diagnosis that supports medical necessity for the services they cover. From the CMS Medicare Coverage Database; check your own contractor's article before billing.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Pelvic Inflammatory Disease

Pelvic inflammatory disease (PID) is an infection of the uterus, ovaries, and other female reproductive organs. PID causes scarring in these organs. This can lead to infertility, ectopic pregnancy, pelvic pain, abscesses (a collection of pus), and other serious problems. PID is the most common preventable cause of infertility in the United States.

Read more about pelvic inflammatory disease on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.

ICD-9-CM equivalent

Legacy crosswalk from the CMS General Equivalence Mappings (last updated 2018).

  • 614.8 Other specified inflammatory disease of female pelvic organs and tissues (approximate)
ICD-9 to ICD-10 converter