FPDS Query Library
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Mod Number

Modification number for the referenced IDV contract record. It identifies which specific revision of the base IDV action is being cited in the procurement record.

Family: IDV
Category: Contract Identification
Data Type: identifier_or_code
Semantic Type: identifier
Mapping: flattened_fpds_xml_field
AI Confidence: high

Variable Overview

FPDS Query Variable
content__IDV__contractID__referencedIDVID__modNumber
Title
Mod Number
FPDS Path
IDV/contractID/referencedIDVID/modNumber
Description
Modification number for the referenced IDV contract record. It identifies which specific revision of the base IDV action is being cited in the procurement record.
Business Meaning
This field helps analysts trace a modification back to the correct IDV action when reviewing award history, obligations, or changes over time. It is important for reconstructing the contract timeline and distinguishing the base IDV from later amendments.
Observed Non-Null Count
133,228

FPDS Compare

FPDS Query Variable
content__IDV__contractID__referencedIDVID__modNumber
FPDS XML Path
IDV/contractID/referencedIDVID/modNumber
Mapping Type
flattened_fpds_xml_field
Comparison Summary
FPDS Query flattens the original nested FPDS XML path 'IDV/contractID/referencedIDVID/modNumber' into the SQL-ready variable 'content__IDV__contractID__referencedIDVID__modNumber'.

Use Cases

  • Dictionary lookup and field explanation
  • SQL filtering and grouping
  • Analytical reporting and reusable query building

Common Usage

  • Linking a transaction to a specific IDV modification
  • Rebuilding award and modification chronology
  • Filtering base awards versus later modifications

Common Mistakes

  • Using the value as a dollar or performance measure
  • Joining on mod number alone without the referenced contract ID

Query Guidance

Use this field in SQL as part of a composite key with the referenced IDV contract identifier and any related award identifiers. For chronology, sort or filter by the modification number only after confirming whether the dataset stores it as text or numeric and whether leading zeros are present.

SQL Examples

Preview values

SELECT
    content__IDV__contractID__referencedIDVID__modNumber AS mod_number
FROM fpds.data
WHERE content__IDV__contractID__referencedIDVID__modNumber IS NOT NULL
LIMIT 25

Top values

SELECT
    content__IDV__contractID__referencedIDVID__modNumber AS value,
    count() AS record_count
FROM fpds.data
WHERE content__IDV__contractID__referencedIDVID__modNumber IS NOT NULL
GROUP BY value
ORDER BY record_count DESC
LIMIT 25

Each dictionary item includes SQL-ready examples generated alongside the variable metadata, allowing immediate use in FPDS Query for filtering, aggregation, and analysis.