N73.9 — Female pelvic inflammatory disease, unspecified
N73.9 is a billable, specific ICD-10-CM code for female pelvic inflammatory disease, unspecified. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Female pelvic infection or inflammation NOS
Risk adjustment
N73.9 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
N73.9 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How N73.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N73.9.
- Disease, diseased›female pelvic inflammatory
- Disease, diseased›pelvis, pelvic›inflammatory(female)
Related codes at this level
Codes that share N73. If N73.9 is not quite right, the correct code is usually one of these.
- N73.0Acute parametritis and pelvic cellulitis
- N73.1Chronic parametritis and pelvic cellulitis
- N73.2Unspecified parametritis and pelvic cellulitis
- N73.3Female acute pelvic peritonitis
- N73.4Female chronic pelvic peritonitis
- N73.5Female pelvic peritonitis, unspecified
- N73.6Female pelvic peritoneal adhesions (postinfective)
- N73.8Other specified female pelvic inflammatory diseases
Questions about N73.9
- Is N73.9 a billable ICD-10-CM code?
- Yes. N73.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N73.9 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Inflammatory diseases of female pelvic organs (N70-N77).