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K6A.01 ICD-10-CM Code: Prevesical abscess

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

Coding at a Glance

Tabular directives
1 inclusion term · 2 Excludes2 · 1 use-additional code · 3 code-also instructions

Billable · FY2027A valid, specific ICD-10-CM code, reportable for dates of service in FY2027.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too; the Instructions section marks which is which.

Use additional codeReport with this code when documented
  • code (B95-B97), to identify infectious agent, if known
Code alsoMay be needed with this code
  • , if applicable:
  • diverticular disease of intestine (K57.-)
  • female pelvic inflammatory disease (N73.-)
Excludes2Not included here; may be reported together
  • peritoneal abscess (K65.1)
  • retroperitoneal abscess (K68.1-)
IncludesWhat this code covers
  • Retropubic abscess

Most relevant related codes MedCoder-derived

Read off the official notes above and this code’s own position in the tabular list. Which to report is a documentation question; Compare shows the two side by side.

CompareCheck ClaimView Related Codes

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 v44, Appendix B.

  • MS-DRG 371 — MAJOR GASTROINTESTINAL DISORDERS AND PERITONEAL INFECTIONS WITH MCC (MDC 06)
  • MS-DRG 372 — MAJOR GASTROINTESTINAL DISORDERS AND PERITONEAL INFECTIONS WITH CC (MDC 06)
  • MS-DRG 373 — MAJOR GASTROINTESTINAL DISORDERS AND PERITONEAL INFECTIONS WITHOUT CC/MCC (MDC 06)
  • MS-DRG 791 — PREMATURITY WITH MAJOR PROBLEMS (MDC 15)
  • MS-DRG 793 — FULL TERM NEONATE WITH MAJOR PROBLEMS (MDC 15)

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 K6A.01 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on K6A.01 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Retropubic abscess

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Source: inherited from K6A.0

Code Also

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

  • Code also, if applicable:
  • diverticular disease of intestine (K57.-)
  • female pelvic inflammatory disease (N73.-)

Source: inherited from K6A.0

Use Additional Code

Supplementary codes the tabular list directs you to add.

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

Source: inherited from K6A.0

Coder workflow for K6A.01

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

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.

Official instructions as workflow

  • Excludes2 — not part of K6A.01(2 notes)

    Coding workflow: The conditions named in this note are not included in K6A.01. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareK65.1, K68.1

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

  • Use Additional Code — after identifying K6A.01(1 note)

    Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with K6A.01 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(3 notes)

    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.

    ReviewK57, N73

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

Coding question: Is a second code reported with K6A.01?

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.

Don’t confuse K6A.01 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of K6A.01 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • K65.1— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of peritoneal abscess adds K65.1; it is not part of this code and both may be reported when both are documented.

    Full comparison: K6A.01 vs K65.1 →

  • K68.1— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of retroperitoneal abscess adds K68.1; it is not part of this code and both may be reported when both are documented.

    Full comparison: K6A.01 vs K68.1 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Prevesical abscess is a billable ICD-10-CM diagnosis code (K6A.01).

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

Official Coding Guidelines

No excerpt in the ICD-10-CM Official Guidelines names this code specifically. Its chapter carries only this chapter-wide note:

Chapter 11: Diseases of the Digestive System (K00-K95)

Reserved for future guideline expansion

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. 3 Code Also notes — a second code may apply; the guidelines leave its sequencing to the circumstances of the encounter. See the Code Also notes
  3. 2 Excludes2 entries — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 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

  • MCC as a secondary diagnosis (FY2027). Can raise the stay's MS-DRG severity tier.

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-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name K6A.01 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes2 note: K65.1 — Peritoneal abscess (via K6A.0.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 10 Code Also instructions across 2 chapters: K57 — Diverticular disease of intestine (via K6A.0.-), N70 — Salpingitis and oophoritis (via K6A.0.-), N70-N77 — Inflammatory diseases of female pelvic organs (N70-N77) (via K6A.0.-), N71 — Inflammatory disease of uterus, except cervix (via K6A.0.-), N72 — Inflammatory disease of cervix uteri (via K6A.0.-), N73 — Other female pelvic inflammatory diseases (via K6A.0.-), N74 — Female pelvic inflammatory disorders in diseases classified elsewhere (via K6A.0.-), N75 — Diseases of Bartholin's gland (via K6A.0.-), N76 — Other inflammation of vagina and vulva (via K6A.0.-), N77 — Vulvovaginal ulceration and inflammation in diseases classified elsewhere (via K6A.0.-).

These codes suggest coding this condition alongside when both are present.

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 MS-DRG: MCC — Major Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 25 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 5 MS-DRGs: DRG 371 (MDC 06), DRG 372 (MDC 06), DRG 373 (MDC 06), DRG 791 (MDC 15), DRG 793 (MDC 15).

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

Related Codes

Same clinical process (MS-DRG)

Acts as MCC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

K63.822 — Small intestinal fungal overgrowth, K63.829 — Intestinal methanogen overgrowth, unspecified, K63.89 — Other specified diseases of intestine, K63.9 — Disease of intestine, unspecified, K65.0 — Generalized (acute) peritonitis, K65.1 — Peritoneal abscess, K65.2 — Spontaneous bacterial peritonitis, K65.3 — Choleperitonitis, K65.4 — Sclerosing mesenteritis, K65.8 — Other peritonitis, K65.9 — Peritonitis, unspecified, K68.19 — Other retroperitoneal abscess, K68.2 — Retroperitoneal fibrosis, K68.3 — Retroperitoneal hematoma, K68.9 — Other disorders of retroperitoneum, K6A.09 — Other pelvic abscess, K6A.8 — Other diseases of the pelvis, not elsewhere classified, K92.89 — Other specified diseases of the digestive system, K92.9 — Disease of digestive system, unspecified, R11.13 — Vomiting of fecal matter, +4 more

Same Index main term, other category

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

K61.2 — Anorectal abscess (anorectal), K61.31 — Horseshoe abscess (horseshoe), K61.39 — Other ischiorectal abscess (ischiorectal), K61.4 — Intrasphincteric abscess (intrasphincteric), K61.5 — Supralevator abscess (supralevator), K63.0 — Abscess of intestine (bowel), K65.1 — Peritoneal abscess (omentum), K68.11 — Postprocedural retroperitoneal abscess (postoperative, retroperitoneal), K68.12 — Psoas muscle abscess (psoas muscle), K68.19 — Other retroperitoneal abscess (presacral), K75.0 — Abscess of liver (liver), K81.0 — Acute cholecystitis (gallbladder), K94.02 — Colostomy infection (colostomy), K94.12 — Enterostomy infection (ileostomy), L02.01 — Cutaneous abscess of face (chin), L02.11 — Cutaneous abscess of neck (neck), L02.211 — Cutaneous abscess of abdominal wall (loin), L02.212 — Cutaneous abscess of back [any part, except buttock and flank] (back), L02.213 — Cutaneous abscess of chest wall (pectoral), L02.214 — Cutaneous abscess of groin (groin), +158 more

Contextual Map

Every relationship of K6A.01 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.

Run K6A.01 with these 9 related codes in Claim Check

Hierarchy

Referenced by Excludes2 notes

  • K65.1 — Peritoneal abscess[Excludes2](via K6A.0.-): “pelvic abscess (extraperitoneal) (K6A.0-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027

Referenced by Code Also instructions (10)

MS-DRG Grouper

MDC crossing

  • MDC 06 — Diseases and Disorders of the Digestive System[MDC crossing]: “Diseases and Disorders of the Digestive 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. 5,748 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027
  • MDC 15 — Newborns and Other Neonates with Conditions Originating in Perinatal Period[MDC crossing]: “Newborns and Other Neonates with Conditions Originating in Perinatal Period — 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.”— CMS MS-DRG Definitions Manual · FY2027

Index entries

  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic), prevesical[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic), retropubic[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes

Change history

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

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.

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 FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2027), quoted by section Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 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 — v44 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-derived 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 editorial 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.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

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. "K6A.01 — Prevesical abscess." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/k6a.01-prevesical-abscess

Change history

Changed in FY2027, the release in force: Added to the code set.

  • FY2027 — October 1, 2026
    Added to the code set
    Prevesical abscess
    FY2027 changes

Nearest Codes in This Family

Official ICD-10-CM classifications closest to K6A.01 in its code family, with their registry titles.

View all codes in the K6A family