Skip to main content

D86.84 ICD-10-CM Code: Sarcoid pyelonephritis

Compare with another code for D86.84Check this code on a claim

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

Coding at a Glance

Official instructions
4 inclusion terms · 2 Excludes1 · 1 Excludes2

What these terms mean →

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, and is marked with where it comes from.

Excludes1from D80-D89Not reported with this code unless documented as unrelated
  • autoimmune disease (systemic) NOS (M35.9)
  • functional disorders of polymorphonuclear neutrophils (D71-)
Excludes2from D80-D89Not included here; may be reported together
  • human immunodeficiency virus [HIV] disease (B20)
IncludesWhat this code covers
  • defects in the complement system (from D80-D89)
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease (from D80-D89)
  • sarcoidosis (from D80-D89)
  • Tubulo-interstitial nephropathy in sarcoidosis

Where it sits Source: CMS/NCHS

Under:Chapter 3: Diseases of the Blood and Blood-forming Organs and Certain Disorders Involving the Immune MechanismD80-D89 Certain disorders involving the immune mechanismD86 SarcoidosisD86.8 Sarcoidosis of other sites

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 196 — INTERSTITIAL LUNG DISEASE WITH MCC (MDC 04)
  • MS-DRG 197 — INTERSTITIAL LUNG DISEASE WITH CC (MDC 04)
  • MS-DRG 198 — INTERSTITIAL LUNG DISEASE WITHOUT CC/MCC (MDC 04)

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 D86.84 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 D86.84 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • defects in the complement system
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
  • sarcoidosis

Source: inherited from D80-D89

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Tubulo-interstitial nephropathy in sarcoidosis

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Source: inherited from D80-D89

Excludes2 — Not Included Here

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

Source: inherited from D80-D89

Coder workflow for D86.84

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

Before you code D86.84

  1. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with D86.84. 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 D86.84’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.

    ReviewM35.9, D71

Consider D86.84. 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).

Official instructions as workflow

  • Excludes1 — check before selecting D86.84(2 notes)

    Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with D86.84: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

    CompareM35.9, D71

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

  • Excludes2 — not part of D86.84(1 note)

    Coding workflow: The conditions named in this note are not included in D86.84. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareB20

    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

Documentation: Both the condition D86.84 describes and a condition named in its Excludes1 note are documented for the same encounter.

Coding question: Can both codes be reported?

Path: Review the Excludes1 note and the excluded code, and look for a provider statement on whether the two conditions are related.

Reason: Excludes1 means the two are not coded together; the exception is when the record shows the conditions are unrelated to each other (Guidelines I.A.12.a).

ReviewM35.9, D71

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 D86.84 with…

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

The codes most likely to be picked instead of D86.84 — 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.

  • M35.9— 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 autoimmune disease (systemic) NOS moves the case to M35.9; the two are not reported together unless documented as unrelated.

    Full comparison: D86.84 vs M35.9 →

  • D71— 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 functional disorders of polymorphonuclear neutrophils moves the case to D71; the two are not reported together unless documented as unrelated.

    Full comparison: D86.84 vs D71 →

  • B20— 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 human immunodeficiency virus [HIV] disease adds B20; it is not part of this code and both may be reported when both are documented.

    Full comparison: D86.84 vs B20 →

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

Sarcoid pyelonephritis is a billable ICD-10-CM diagnosis code (D86.84).

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 3: Disease of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)

Reserved for future guideline expansion

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-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name D86.84 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 2 Excludes1 notes across 2 chapters: D72 — Other disorders of white blood cells (via D86.-), N16 — Renal tubulo-interstitial disorders in diseases classified elsewhere.

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

Referenced by 1 Code First instruction: J84.170 — Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere (via D86.-).

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.

Referenced by 1 Code Also instruction: I27.29 — Other secondary pulmonary hypertension (via D86.-).

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: 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 196 (MDC 04), DRG 197 (MDC 04), DRG 198 (MDC 04).

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

Clinical classification (AHRQ CCSR):BLD008 — Immunity disorders (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 (Immunity disorders).

D84.822 — Immunodeficiency due to external causes, D84.89 — Other immunodeficiencies, D84.9 — Immunodeficiency, unspecified, D86.0 — Sarcoidosis of lung, D86.1 — Sarcoidosis of lymph nodes, D86.2 — Sarcoidosis of lung with sarcoidosis of lymph nodes, D86.3 — Sarcoidosis of skin, D86.81 — Sarcoid meningitis, D86.82 — Multiple cranial nerve palsies in sarcoidosis, D86.83 — Sarcoid iridocyclitis, D86.85 — Sarcoid myocarditis, D86.86 — Sarcoid arthropathy, D86.87 — Sarcoid myositis, D86.89 — Sarcoidosis of other sites, D86.9 — Sarcoidosis, unspecified, D89.0 — Polyclonal hypergammaglobulinemia, D89.1 — Cryoglobulinemia, D89.2 — Hypergammaglobulinemia, unspecified, D89.3 — Immune reconstitution syndrome, D89.40 — Mast cell activation, unspecified, +64 more

Same Index main term, other category

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

A02.25 — Salmonella pyelonephritis (in, Salmonella infection), A23.9 — Brucellosis, unspecified (in, brucellosis), A36.84 — Diphtheritic tubulo-interstitial nephropathy (in, diphtheria), A41.9 — Sepsis, unspecified organism (in, sepsis), A52.75 — Syphilis of kidney and ureter (syphilitic), B58.83 — Toxoplasma tubulo-interstitial nephropathy (in, toxoplasmosis), C85.90 — Non-Hodgkin lymphoma, unspecified, unspecified site (in, lymphoma NEC), C90.0 — Multiple myeloma (in, multiple myeloma), C95.9 — Leukemia, unspecified (in, leukemia NEC), D89.1 — Cryoglobulinemia (in, cryoglobulinemia), E72.04 — Cystinosis (in, cystinosis), E74.09 — Other glycogen storage disease (in, glycogen storage disease), E83.01 — Wilson's disease (in, Wilson's disease), L08.89 — Other specified local infections of the skin and subcutaneous tissue (Spiegler-Fendt), M35.04 — Sjögren syndrome with tubulo-interstitial nephropathy (in, Sjögren's disease), N10 — Acute pyelonephritis (acute), N11.0 — Nonobstructive reflux-associated chronic pyelonephritis (nonobstructive, with reflux), N11.1 — Chronic obstructive pyelonephritis (in, obstruction), N11.8 — Other chronic tubulo-interstitial nephritis (chronic, specified NEC), N11.9 — Chronic tubulo-interstitial nephritis, unspecified (chronic), +3 more

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.

Gamma-glutamyl Transferase (GGT) Test, Partial Thromboplastin Time (PTT) Test, Prothrombin Time Test and INR (PT/INR)

Contextual Map

Every relationship of D86.84 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 D86.84 with these 4 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes

Referenced by Code First instructions

Referenced by Code Also instructions

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 04 — Diseases and Disorders of the Respiratory System[MDC crossing]: “Diseases and Disorders of the Respiratory 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. 4,000 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027

Index entries

  • Disorder (of), tubulo-interstitial (in), sarcoidosis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Pyelonephritis, in (due to), sarcoidosis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Sarcoid, pyelonephritis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027
  • Sarcoidosis, with, tubulo-interstitial nephropathy[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2027

Nearest codes (14)

Change history (3)

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 (4)

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 28, 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. "D86.84 — Sarcoid pyelonephritis." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/d86.84-sarcoid-pyelonephritis

Change history

Changed in FY2027, the release in force: Excludes2 note added; Excludes1 note removed.

  • FY2027 — October 1, 2026
    Excludes2 note added
    human immunodeficiency virus [HIV] disease (B20)
    FY2027 changes
  • FY2027 — October 1, 2026
    Excludes1 note removed
    human immunodeficiency virus [HIV] disease (B20)
    FY2027 changes
  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Sarcoid pyelonephritis

Nearest Codes in This Family

Official ICD-10-CM classifications closest to D86.84 in its code family, with their registry titles.

View all codes in the D86 family