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N70.92 ICD-10-CM Code: Oophoritis, unspecified

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Coding at a Glance

Tabular directives
6 inclusion terms · 5 Excludes1 · 1 use-additional code · 1 code-also instruction

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43, Appendix B.

  • MS-DRG 742 — UTERINE AND ADNEXA PROCEDURES FOR NON-MALIGNANCY WITH CC/MCC (MDC 13)
  • MS-DRG 743 — UTERINE AND ADNEXA PROCEDURES FOR NON-MALIGNANCY WITHOUT CC/MCC (MDC 13)
  • MS-DRG 757 — INFECTIONS, FEMALE REPRODUCTIVE SYSTEM WITH MCC (MDC 13)
  • MS-DRG 758 — INFECTIONS, FEMALE REPRODUCTIVE SYSTEM WITH CC (MDC 13)
  • MS-DRG 759 — INFECTIONS, FEMALE REPRODUCTIVE SYSTEM WITHOUT CC/MCC (MDC 13)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for N70.92 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on N70.92 itself; “inherited from” names the category or block whose note applies here.

This page already reflects the FY2027 tabular note taking effect October 1, 2026.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • abscess (of) fallopian tube
  • abscess (of) ovary
  • pyosalpinx
  • salpingo-oophoritis
  • tubo-ovarian abscess
  • tubo-ovarian inflammatory disease

Source: inherited from N70

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Code Also

Additional codes that may be required to fully describe the encounter.

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

Source: inherited from N70-N77

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code (B95-B97), to identify infectious agent

Source: inherited from N70

Coder workflow for N70.92

MedCoder structured workflow — derived from this code’s own official record

Before you code N70.92

  1. Unspecified does not mean incorrect. When the record gives no greater specificity, N70.92 may be the appropriate code. Check the record for detail that supports a more specific sibling. An unspecified code is for records that do not provide the detail a more specific code needs; a query, not an assumption, is the route to specificity (Guidelines I.A.9.b, I.B.18).

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

  2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with N70.92. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

    See the official tabular notes

Choose the right path

  1. Does the record document the detail a more specific sibling code needs?
    Yes → Review the specific siblings in this subcategory.
    No → Continue — N70.92 is appropriate when the documentation goes no further.
  2. Does the documentation support a condition named in N70.92’s Excludes1 note?
    Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
    No → Continue.

    ReviewA54.24, A18.17, O08.0, O23, O75.3, O85

Consider N70.92. Then work the Use Additional Code note and review the Code Also note, and confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
The conditions the Use Additional Code note names
Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.
Any detail beyond this code’s title
What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

  • Excludes1 — check before selecting N70.92(5 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with N70.92: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareA54.24, A18.17, O08.0, O23, O75.3, O85

    See the official tabular notes · Guidelines I.A.12.a

  • Use Additional Code — after identifying N70.92(1 note)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with N70.92 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

    See the official tabular notes · Guidelines I.A.13

  • Code Also — related condition(1 note)

    Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

    ReviewK6A.0

    See the official tabular notes · Guidelines I.A.17

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: The provider documents the condition in the terms of this code’s title and records no further detail.

Coding question: Is a more specific sibling code supportable?

Path: Review the subcategory for a sibling that names the missing detail.

Reason: A more specific code needs documentation of the distinguishing element; without it the unspecified code is appropriate, and a provider query is the route to specificity (Guidelines I.A.9.b, I.B.18).

Documentation: Both the condition N70.92 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewA54.24, A18.17, O08.0, O23, O75.3, O85

Documentation: A condition the Use Additional Code note names is documented.

Coding question: Is a second code reported with N70.92?

Path: Review the Use Additional Code note and the code it names.

Reason: The additional code is reported when the record documents the condition; a conditional instruction applies only when its condition is met (Guidelines I.A.13).

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Oophoritis, unspecified is a billable ICD-10-CM diagnosis code (N70.92).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (2)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

  1. 1 Use Additional Code instruction — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
  2. 1 Code Also note — a second code may apply; the guidelines leave its sequencing to the circumstances of the encounter. See the Code Also notes
  3. 5 Excludes1 entries — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 5 MS-DRGs: DRG 742 (MDC 13), DRG 743 (MDC 13), DRG 757 (MDC 13), DRG 758 (MDC 13), DRG 759 (MDC 13).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):GEN018 — Inflammatory diseases of female pelvic organs (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Inflammatory diseases of female pelvic organs).

B37.3 — Candidiasis of vulva and vagina, B37.31 — Acute candidiasis of vulva and vagina, B37.32 — Chronic candidiasis of vulva and vagina, N70.01 — Acute salpingitis, N70.02 — Acute oophoritis, N70.03 — Acute salpingitis and oophoritis, N70.11 — Chronic salpingitis, N70.12 — Chronic oophoritis, N70.13 — Chronic salpingitis and oophoritis, N70.91 — Salpingitis, unspecified, N70.93 — Salpingitis and oophoritis, unspecified, N71.0 — Acute inflammatory disease of uterus, N71.1 — Chronic inflammatory disease of uterus, N71.9 — Inflammatory disease of uterus, unspecified, N72 — Inflammatory disease of cervix uteri, N73.0 — Acute parametritis and pelvic cellulitis, N73.1 — Chronic parametritis and pelvic cellulitis, N73.2 — Unspecified parametritis and pelvic cellulitis, N73.3 — Female acute pelvic peritonitis, N73.4 — Female chronic pelvic peritonitis, +43 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Necrosis, necrotic”; these codes share that main term but sit in a different category of the Tabular List.

M87.00 — Idiopathic aseptic necrosis of unspecified bone (bone, aseptic or avascular, idiopathic), M87.9 — Osteonecrosis, unspecified (bone), N17.0 — Acute kidney failure with tubular necrosis (tubular), N17.1 — Acute kidney failure with acute cortical necrosis (cortical), N17.2 — Acute kidney failure with medullary necrosis (medullary), N17.9 — Acute kidney failure, unspecified (kidney, acute), N28.0 — Ischemia and infarction of kidney (kidney), N32.89 — Other specified disorders of bladder (bladder), N50.89 — Other specified disorders of the male genital organs (testis), N64.1 — Fat necrosis of breast (breast), N89.8 — Other specified noninflammatory disorders of vagina (vagina), N90.89 — Other specified noninflammatory disorders of vulva and perineum (vulva), N99.0 — Postprocedural (acute) (chronic) kidney failure (tubular, postprocedural), N99.861 — Intraoperative and postprocedural nipple necrosis (nipple, intraoperative and postprocedural), O08.4 — Renal failure following ectopic and molar pregnancy (kidney, tubular, with ectopic or molar pregnancy), O99.285 — Endocrine, nutritional and metabolic diseases complicating the puerperium (pituitary, Sheehan), P15.6 — Subcutaneous fat necrosis due to birth injury (fat, fatty, subcutaneous, due to birth injury), P83.0 — Sclerema neonatorum (fat, fatty, skin, newborn), P83.88 — Other specified conditions of integument specific to newborn (subcutaneous fat, newborn), T79.5 — Traumatic anuria (kidney, tubular, traumatic), +35 more

Contextual Map

Every relationship of N70.92 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 13 — Diseases and Disorders of the Female Reproductive System[MDC crossing]: “Diseases and Disorders of the Female Reproductive System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 2,232 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

  • Necrosis, necrotic (ischemic), ovary[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Oophoritis (cystic) (infectional) (interstitial)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (12)

Change history (2)

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "N70.92 — Oophoritis, unspecified." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/n70.92-oophoritis-unspecified

Change history

  • Upcoming · effective FY2027 — October 1, 2026
    Code Also note will be added
    , if applicable, pelvic abscess (K6A.0-)
    FY2027 changes
  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Oophoritis, unspecified

Nearest Codes in This Family

Official ICD-10-CM classifications closest to N70.92 in its code family, with their registry titles.

View all codes in the N70 family