H93.013 ICD-10-CM Code: Transient ischemic deafness, bilateral

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for H93.013 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 H93.013 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for H93.013

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

Before you code H93.013

1. Laterality is coded in this family. Confirm the side documented — right, left, or bilateral — and select the matching code (this page’s code: bilateral). The unspecified-side code applies only when the record states no side. Laterality is assigned from the documented side; where a bilateral code exists and both sides are documented, it is used instead of two unilateral codes (Guidelines I.B.13).

   See the relationships section · Guide: Laterality coding →

2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with H93.013. 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 documentation support a condition named in H93.013’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.

   ReviewH91.1

2. Is the side documented?
   Yes → Select the code for the documented side (or the bilateral code when both sides are documented and one exists).
   No → Use the unspecified-side code only when the record states no side; a query is the alternative.

Consider H93.013. Then 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).

Laterality

Right, left or bilateral as documented; unspecified only when the record states no side (Guidelines I.B.13).

Official instructions as workflow

• Excludes1 — check before selecting H93.013(1 note)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with H93.013: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareH91.1

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

Coding decision scenarios

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

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.

Official Coding Guidelines

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

Don’t confuse H93.013 with…

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

The codes most likely to be picked instead of H93.013 — 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.

• H91.1— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of presbycusis moves the case to H91.1; the two are not reported together unless documented as unrelated.

  Full comparison: H93.013 vs H91.1 →

• H93.019— Specificity relationship (Review)

  Overlapping diagnoses in the same category.

  Overlapping codes in the same category — the documentation decides which is the more specific fit.

  What moves you there: A record that documents no more than “Transient ischemic deafness, unspecified ear” takes H93.019; specificity in the record moves it back here.

  Full comparison: H93.013 vs H93.019 →

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.

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 H93.013 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 Excludes1 note: H91 — Other and unspecified hearing loss (via H93.01.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

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 3 MS-DRGs: DRG 154 (MDC 03), DRG 155 (MDC 03), DRG 156 (MDC 03).

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

Clinical classification (AHRQ CCSR):EAR004 — Hearing loss (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 (Hearing loss).

H91.20 — Sudden idiopathic hearing loss, unspecified ear, H91.21 — Sudden idiopathic hearing loss, right ear, H91.22 — Sudden idiopathic hearing loss, left ear, H91.23 — Sudden idiopathic hearing loss, bilateral, H91.3 — Deaf nonspeaking, not elsewhere classified, H91.8X1 — Other specified hearing loss, right ear, H91.8X2 — Other specified hearing loss, left ear, H91.8X3 — Other specified hearing loss, bilateral, H91.8X9 — Other specified hearing loss, unspecified ear, H91.90 — Unspecified hearing loss, unspecified ear, H91.91 — Unspecified hearing loss, right ear, H91.92 — Unspecified hearing loss, left ear, H91.93 — Unspecified hearing loss, bilateral, H93.011 — Transient ischemic deafness, right ear, H93.012 — Transient ischemic deafness, left ear, H93.019 — Transient ischemic deafness, unspecified ear, P09.6 — Abnormal findings on neonatal hearing screening, Z45.320 — Encounter for adjustment and management of bone conduction device, Z45.321 — Encounter for adjustment and management of cochlear device, Z45.328 — Encounter for adjustment and management of other implanted hearing device, +27 more

Same Index main term, other category

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

A52.15 — Late syphilitic neuropathy (syphilitic), F44.6 — Conversion disorder with sensory symptom or deficit (emotional), H83.3 — Noise effects on inner ear (noise-induced), H90.0 — Conductive hearing loss, bilateral (conductive, bilateral), H90.1 — Conductive hearing loss, unilateral with unrestricted hearing on the contralateral side (conductive, unilateral), H90.2 — Conductive hearing loss, unspecified (conductive), H90.3 — Sensorineural hearing loss, bilateral (sensorineural, bilateral), H90.4 — Sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side (sensorineural, unilateral), H90.5 — Unspecified sensorineural hearing loss (congenital), H90.6 — Mixed conductive and sensorineural hearing loss, bilateral (mixed conductive and sensorineural, bilateral), H90.7 — Mixed conductive and sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side (mixed conductive and sensorineural, unilateral), H90.8 — Mixed conductive and sensorineural hearing loss, unspecified (mixed conductive and sensorineural), H90.A — Conductive and sensorineural hearing loss with restricted hearing on the contralateral side (conductive, unilateral, with restricted hearing on the contralateral side), H91.2 — Sudden idiopathic hearing loss (sudden), H91.3 — Deaf nonspeaking, not elsewhere classified (nonspeaking), H91.9 — Unspecified hearing loss, Q78.0 — Osteogenesis imperfecta (with blue sclera and fragility of bone), R48.8 — Other symbolic dysfunctions (mental), T70.0 — Otitic barotrauma (aviation)

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Lipid Panel

Contextual Map

Every relationship of H93.013 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 H93.013 with this related code in Claim Check

Hierarchy

• H60-H95 — Chapter 8: Diseases of the Ear and Mastoid Process (H60-H95) (H60-H95)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H90-H94 — Other disorders of ear[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• H91 — Other and unspecified hearing loss[Excludes1](via H93.01.-): “transient ischemic deafness (H93.01-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

• EAR004 — Hearing loss[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• DRG 154 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH MCC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH MCC (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 155 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH CC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH CC (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 156 — OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITHOUT CC/MCC[MS-DRG]: “OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITHOUT CC/MCC (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat[MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — 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. 5,147 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Nearest codes (40)

• H93 — Other disorders of ear, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.0 — Degenerative and vascular disorders of ear[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.01 — Transient ischemic deafness[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.011 — Transient ischemic deafness, right ear[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.012 — Transient ischemic deafness, left ear[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.019 — Transient ischemic deafness, unspecified ear[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.09 — Unspecified degenerative and vascular disorders of ear[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• H93.091 — Unspecified degenerative and vascular disorders of right ear[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 32 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

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

Coding guidelines Official source data

ICD-10-CM Official Guidelines for Coding and Reporting (FY2026), quoted by section 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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to H93.013 in its code family, with their registry titles.

• H93 — Other disorders of ear, not elsewhere classified
• H93.0 — Degenerative and vascular disorders of ear
• H93.01 — Transient ischemic deafness
• H93.011 — Transient ischemic deafness, right ear
• H93.012 — Transient ischemic deafness, left ear
• H93.019 — Transient ischemic deafness, unspecified ear
• H93.09 — Unspecified degenerative and vascular disorders of ear
• H93.091 — Unspecified degenerative and vascular disorders of right ear
• H93.092 — Unspecified degenerative and vascular disorders of left ear
• H93.093 — Unspecified degenerative and vascular disorders of ear, bilateral

View all codes in the H93 family