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ICD-10-CM tabular list

N70-N77Inflammatory diseases of female pelvic organs

ICD-10-CM codes N70-N77 cover inflammatory diseases of female pelvic organs, within diseases of the genitourinary system. The block holds 49 codes across 8 categories, of which 39 are billable and 10 are header codes that cannot be submitted on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • 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.-)

Risk adjustment in N70-N77

0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.

  • HCC 92 Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis

What else to watch in N70-N77

  • 33 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.

Categories in N70-N77

ICD-10-CMFY2026-Apr· effective April 1, 2026