R89.8 ICD-10-CM Code: Other abnormal findings in specimens from other organs, systems and tissues

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for R89.8 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 R89.8 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for R89.8

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

Before you code R89.8

1. Check whether an established diagnosis that explains this sign or symptom is documented. If one is, review whether the documented diagnosis changes the coding pathway: a symptom that is integral to a confirmed diagnosis is not reported separately, while one not routinely associated with it may be. Signs and symptoms are reported when no definitive diagnosis is established (Guidelines I.B.4, I.B.5, I.B.6, I.C.18.b).

   Guide: Symptom code vs confirmed diagnosis →

2. “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 R89.8; 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).

   ReviewR89.0, R89.1, R89.2, R89.3, R89.4, R89.5, R89.6, R89.7

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

3. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with R89.8. 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. Is an established diagnosis that explains this sign or symptom documented?
   Yes → Review whether the documented diagnosis changes the coding pathway: a symptom integral to it is not reported separately.
   No → Continue — the sign or symptom code stands when no definitive diagnosis is established.
2. Does the documentation support a condition named in R89.8’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.

   ReviewO28

Consider R89.8. 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).

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 R89.8(2 notes)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with R89.8: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareO28

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

• Excludes2 — not part of R89.8(3 notes)

  Coding workflow: The conditions named in this note are not included in R89.8. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareR97

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

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.

Indexed Clinical Terms (6)

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.

• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result
• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result, nipple discharge
• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result, synovial fluid
• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result, wound secretions
• Abnormal, abnormality, abnormalities, karyotype
• Abnormal, abnormality, abnormalities, specimen, specified organ, system and tissue NOS, specified type NEC

Don’t confuse R89.8 with…

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

The codes most likely to be picked instead of R89.8 — 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.

• O28— 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 abnormal findings on antenatal screening of mother moves the case to O28; the two are not reported together unless documented as unrelated.

  Full comparison: R89.8 vs O28 →

• R89.9— 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 “Unspecified abnormal finding in specimens from other organs, systems and tissues” takes R89.9; specificity in the record moves it back here.

  Full comparison: R89.8 vs R89.9 →

• R70— 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 abnormal findings on examination of blood, without diagnosis adds R70; it is not part of this code and both may be reported when both are documented.

  Full comparison: R89.8 vs R70 →

• R79— 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 abnormal findings on examination of blood, without diagnosis adds R79; it is not part of this code and both may be reported when both are documented.

  Full comparison: R89.8 vs R79 →

• R80— 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 abnormal findings on examination of urine, without diagnosis adds R80; it is not part of this code and both may be reported when both are documented.

  Full comparison: R89.8 vs R80 →

• R82— 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 abnormal findings on examination of urine, without diagnosis adds R82; it is not part of this code and both may be reported when both are documented.

  Full comparison: R89.8 vs R82 →

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 R89.8 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: N64.52 — Nipple discharge (via R89.-).

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 2 MS-DRGs: DRG 947 (MDC 23), DRG 948 (MDC 23).

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

Clinical classification (AHRQ CCSR):SYM017 — Abnormal findings without diagnosis (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 (Abnormal findings without diagnosis).

R88.0 — Cloudy (hemodialysis) (peritoneal) dialysis effluent, R88.8 — Abnormal findings in other body fluids and substances, R89.0 — Abnormal level of enzymes in specimens from other organs, systems and tissues, R89.1 — Abnormal level of hormones in specimens from other organs, systems and tissues, R89.2 — Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues, R89.3 — Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues, R89.4 — Abnormal immunological findings in specimens from other organs, systems and tissues, R89.5 — Abnormal microbiological findings in specimens from other organs, systems and tissues, R89.6 — Abnormal cytological findings in specimens from other organs, systems and tissues, R89.7 — Abnormal histological findings in specimens from other organs, systems and tissues, R89.9 — Unspecified abnormal finding in specimens from other organs, systems and tissues, R90.0 — Intracranial space-occupying lesion found on diagnostic imaging of central nervous system, R90.81 — Abnormal echoencephalogram, R90.82 — White matter disease, unspecified, R90.89 — Other abnormal findings on diagnostic imaging of central nervous system, R91.1 — Solitary pulmonary nodule, R91.8 — Other nonspecific abnormal finding of lung field, R92.0 — Mammographic microcalcification found on diagnostic imaging of breast, R92.1 — Mammographic calcification found on diagnostic imaging of breast, R92.2 — Inconclusive mammogram, +183 more

Same Index main term, other category

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

R87.628 — Other abnormal cytological findings on specimens from vagina (Papanicolaou, vagina, specified NEC), R87.629 — Unspecified abnormal cytological findings in specimens from vagina (specimen, vagina), R87.69 — Abnormal cytological findings in specimens from other female genital organs (specimen, vulva), R87.7 — Abnormal histological findings in specimens from female genital organs (specimen, female genital organs, histological), R87.810 — Cervical high risk human papillomavirus (HPV) DNA test positive (specimen, female genital organs, cytology, cervix, human papillomavirus DNA test, high risk positive), R87.811 — Vaginal high risk human papillomavirus (HPV) DNA test positive (specimen, female genital organs, cytology, vagina, human papillomavirus DNA test, high risk positive), R87.820 — Cervical low risk human papillomavirus (HPV) DNA test positive (specimen, female genital organs, cytology, cervix, human papillomavirus DNA test, low risk positive), R87.821 — Vaginal low risk human papillomavirus (HPV) DNA test positive (specimen, female genital organs, cytology, vagina, human papillomavirus DNA test, low risk positive), R87.89 — Other abnormal findings in specimens from female genital organs (chromosome, chromosomal, analysis result, vulva), R87.9 — Unspecified abnormal finding in specimens from female genital organs (specimen, female genital organs), R90.81 — Abnormal echoencephalogram (echoencephalogram), R90.89 — Other abnormal findings on diagnostic imaging of central nervous system (diagnostic imaging, cerebrovascular NEC), R91.8 — Other nonspecific abnormal finding of lung field (diagnostic imaging, lung), R92.0 — Mammographic microcalcification found on diagnostic imaging of breast (mammogram NEC, microcalcification), R92.1 — Mammographic calcification found on diagnostic imaging of breast (mammogram NEC, calcification), R92.8 — Other abnormal and inconclusive findings on diagnostic imaging of breast (mammogram NEC), R93.0 — Abnormal findings on diagnostic imaging of skull and head, not elsewhere classified (diagnostic imaging, head), R93.1 — Abnormal findings on diagnostic imaging of heart and coronary circulation (heart, shadow), R93.2 — Abnormal findings on diagnostic imaging of liver and biliary tract (scan, liver), R93.3 — Abnormal findings on diagnostic imaging of other parts of digestive tract (diagnostic imaging, gastrointestinal), +231 more

Contextual Map

Every relationship of R89.8 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 R89.8 with this related code in Claim Check

Hierarchy

• R00-R99 — Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) (R00-R99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R83-R89 — Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• N64.52 — Nipple discharge[Excludes1](via R89.-): “abnormal findings in nipple discharge (R89.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

• SYM017 — Abnormal findings without diagnosis[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper

• DRG 947 — SIGNS AND SYMPTOMS WITH MCC[MS-DRG]: “SIGNS AND SYMPTOMS WITH MCC (MDC 23)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 948 — SIGNS AND SYMPTOMS WITHOUT MCC[MS-DRG]: “SIGNS AND SYMPTOMS WITHOUT MCC (MDC 23)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 23 — Factors Influencing Health Status and Other Contacts with Health Services[MDC crossing]: “Factors Influencing Health Status and Other Contacts with Health Services — 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. 1,235 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result, nipple discharge[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result, synovial fluid[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Abnormal, abnormality, abnormalities, chromosome, chromosomal, analysis result, wound secretions[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Abnormal, abnormality, abnormalities, karyotype[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Abnormal, abnormality, abnormalities, specimen, specified organ, system and tissue NOS, specified type NEC[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (10)

• R89 — Abnormal findings in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.0 — Abnormal level of enzymes in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.1 — Abnormal level of hormones in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.2 — Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.3 — Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.4 — Abnormal immunological findings in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.5 — Abnormal microbiological findings in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• R89.6 — Abnormal cytological findings in specimens from other organs, systems and tissues[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 2 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

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 R89.8 in its code family, with their registry titles.

• R89 — Abnormal findings in specimens from other organs, systems and tissues
• R89.0 — Abnormal level of enzymes in specimens from other organs, systems and tissues
• R89.1 — Abnormal level of hormones in specimens from other organs, systems and tissues
• R89.2 — Abnormal level of other drugs, medicaments and biological substances in specimens from other organs, systems and tissues
• R89.3 — Abnormal level of substances chiefly nonmedicinal as to source in specimens from other organs, systems and tissues
• R89.4 — Abnormal immunological findings in specimens from other organs, systems and tissues
• R89.5 — Abnormal microbiological findings in specimens from other organs, systems and tissues
• R89.6 — Abnormal cytological findings in specimens from other organs, systems and tissues
• R89.7 — Abnormal histological findings in specimens from other organs, systems and tissues
• R89.9 — Unspecified abnormal finding in specimens from other organs, systems and tissues

View all codes in the R89 family