Skip to main content

B88.09 ICD-10-CM Code: Other acariasis

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

Coding at a Glance

Tabular directives
4 inclusion terms · 1 Excludes2

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 606 — MINOR SKIN DISORDERS WITH MCC (MDC 09)
  • MS-DRG 607 — MINOR SKIN DISORDERS WITHOUT MCC (MDC 09)

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 B88.09 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 B88.09 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Acarine dermatitis
  • Dermatitis due to Dermanyssus gallinae
  • Dermatitis due to Liponyssoides sanguineus
  • Trombiculosis

Excludes2 — Not Included Here

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

Source: inherited from B88.0

Coder workflow for B88.09

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

Before you code B88.09

  1. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on B88.09; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

    ReviewB88.01

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

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).
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

  • Excludes2 — not part of B88.09(1 note)

    Coding workflow: The conditions named in this note are not included in B88.09. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareB86

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

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

Other acariasis is a billable ICD-10-CM diagnosis code (B88.09).

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 (43)

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.

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

Other codes that name B88.09 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 Code First instruction: H94.0 — Acoustic neuritis in infectious and parasitic diseases classified elsewhere (via B88.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

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 2 MS-DRGs: DRG 606 (MDC 09), DRG 607 (MDC 09).

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

Clinical classification (AHRQ CCSR):SKN007 — Other specified and unspecified skin disorders (default); INF009 — Parasitic, other specified and unspecified infections.

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 categories (Other specified and unspecified skin disorders, Parasitic, other specified and unspecified infections).

B87.1 — Wound myiasis, B87.2 — Ocular myiasis, B87.3 — Nasopharyngeal myiasis, B87.4 — Aural myiasis, B87.81 — Genitourinary myiasis, B87.82 — Intestinal myiasis, B87.89 — Myiasis of other sites, B87.9 — Myiasis, unspecified, B88.0 — Other acariasis, B88.01 — Infestation by Demodex mites, B88.1 — Tungiasis [sandflea infestation], B88.2 — Other arthropod infestations, B88.3 — External hirudiniasis, B88.8 — Other specified infestations, B88.9 — Infestation, unspecified, B89 — Unspecified parasitic disease, B99.8 — Other infectious disease, B99.9 — Unspecified infectious disease, G02 — Meningitis in other infectious and parasitic diseases classified elsewhere, L30.0 — Nummular dermatitis, +390 more

Same Index main term, other category

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

B83.4 — Internal hirudiniasis (helminth, hirudiniasis, internal), B83.8 — Other specified helminthiases (Gongylonema), B83.9 — Helminthiasis, unspecified (worms), B85.0 — Pediculosis due to Pediculus humanus capitis (Pediculus, head), B85.1 — Pediculosis due to Pediculus humanus corporis (Pediculus, body), B85.2 — Pediculosis, unspecified (Pediculus), B85.3 — Phthiriasis (Phthirus), B85.4 — Mixed pediculosis and phthiriasis (Pediculus, mixed), B86 — Scabies (scabies), B87.9 — Myiasis, unspecified (Oestrus ovis), B89 — Unspecified parasitic disease (parasite, parasitic), E52 — Niacin deficiency [pellagra] (pellagrous), F45.8 — Other somatoform disorders (nervous), F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere (psychogenic), H01.111 — Allergic dermatitis of right upper eyelid (eyelid, allergic, right, upper), H01.112 — Allergic dermatitis of right lower eyelid (eyelid, allergic, right, lower), H01.113 — Allergic dermatitis of right eye, unspecified eyelid (eyelid, allergic, right), H01.114 — Allergic dermatitis of left upper eyelid (eyelid, allergic, left, upper), H01.115 — Allergic dermatitis of left lower eyelid (eyelid, allergic, left, lower), H01.116 — Allergic dermatitis of left eye, unspecified eyelid (eyelid, allergic, left), +371 more

Contextual Map

Every relationship of B88.09 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 B88.09 with this related code in Claim Check

Hierarchy

Referenced by Code First instructions

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 09 — Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast[MDC crossing]: “Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast — 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. 7,376 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries (43)

  • Acariasis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Acarodermatitis (urticarioides)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Bite (s) (animal) (human), chigger[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Bite (s) (animal) (human), red bug[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cheese itch[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Chigger (infestation)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Copra itch[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Dermatitis (eczematous), acarine[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • and 35 more

Nearest codes

Change history

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. "B88.09 — Other acariasis." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/b88.09-other-acariasis

Change history

  • FY2026 — October 1, 2025
    Added to the code set
    Other acariasis
    FY2026 changes

Nearest Codes in This Family

Official ICD-10-CM classifications closest to B88.09 in its code family, with their registry titles.

View all codes in the B88 family