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K04.7

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Periapical abscess without sinus

Filed alongside this entry 271

under Infection, infected, infective (opportunistic)

Index entries, exactly as the book files them. This says they are listed together — not that any of them is documented in your chart.

Billable FY2027 2026-10-01 → 2027-09-30
How to use this page

Everything the published sources say about one code, on one page.

  1. Read the Excludes1 block first — it is the one that stops you coding this at all alongside another code.
  2. Excludes2, Code first, Use additional and Includes follow. A note inherited from a parent category is labelled with the category it came from, so you can see why it applies.
  3. Official Guidelines sit below. "Guidelines naming this code" cite the code or a range containing it; "Chapter guidance" is the general guidance for its chapter and is the weaker signal.
  4. Guideline text is quoted verbatim with its section number and page, so you can check it against the published document.
  5. Risk-model chips show which published CMS models map this code.

What this page does not do

  • Guidance is quoted, never paraphrased — a paraphrase of a coding rule is a different rule.
  • Medication candidates, where shown, are matched by condition *name* and are offered as candidates for you to judge. They are not "the drugs for this code".

All page guides →

Exclusions8never code together
K00-K95chapter
Excludes2
  • certain conditions originating in the perinatal period (P04-P96)P04-P96
  • certain infectious and parasitic diseases (A00-B99)A00-B99
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
  • endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
  • injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
  • neoplasms (C00-D49)C00-D49
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes2
K04.7code
Inclusion terms
  • Dental abscess without sinus
  • Dentoalveolar abscess without sinus
Official Guidelines1names this code

ICD-10-CM Official Guidelines for Coding and Reporting, quoted in full. Published by CMS and NCHS; in the public domain.

I.C.11 Chapter 11: Diseases of the Digestive System (K00-K95) names this code p.58

Reserved for future guideline expansion

Index entries leading here4
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
  • Infection, infected, infective (opportunistic) B99.9
    • alveolus, alveolar (process) K04.7
    • dental (pulpal origin) K04.7
    • focal
      • teeth (pulpal origin) K04.7
    • tooth, teeth K04.7
  • Gumboil K04.7
  • Parulis K04.7
Alongside this code9same parent — K04
K04.0 Pulpitis category K04.1 Necrosis of pulp K04.2 Pulp degeneration K04.3 Abnormal hard tissue formation in pulp K04.4 Acute apical periodontitis of pulpal origin K04.5 Chronic apical periodontitis K04.6 Periapical abscess with sinus K04.8 Radicular cyst K04.9 Other and unsp diseases of pulp and periapical tissues category
Medications1
12 Abscess drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2027
Parent
K04
Block
K00-K14
Siblings
9

Present FY2018–FY2027.