Condition
=========

*Source file:* ``condition.py``

Root XPath
----------

.. code-block:: xpath

    ./hl7:component/hl7:structuredBody/hl7:component/hl7:section/hl7:templateId[@root='2.16.840.1.113883.10.20.22.2.5' or  @root='2.16.840.1.113883.10.20.22.2.5.1' ] /../hl7:entry/hl7:act/hl7:entryRelationship/hl7:observation

**Expected OMOP domain:** Condition

Fields
------

+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field                          | Type     | Order | Details                                                                                                                                                                                                                   |
+================================+==========+=======+===========================================================================================================================================================================================================================+
| condition_occurrence_id        | HASH     | 1     | hash(person_id, provider_id, condition_concept_code, condition_concept_codeSystem, condition_start_date, condition_start_datetime, condition_end_date, condition_end_datetime, condition_id_root, condition_id_extension) |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| person_id                      | FK       | 2     | FK → ``person_id``                                                                                                                                                                                                        |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_concept_id           | DERIVED  | 3     | ``VT.codemap_xwalk_concept_id(concept_code=condition_concept_code, vocabulary_oid=condition_concept_codeSystem)``                                                                                                         |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_start_date           | PRIORITY | 4     | coalesce candidates by priority                                                                                                                                                                                           |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_start_datetime       | PRIORITY | 5     | coalesce candidates by priority                                                                                                                                                                                           |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_end_date             | PRIORITY | 6     | coalesce candidates by priority                                                                                                                                                                                           |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_end_datetime         | PRIORITY | 7     | coalesce candidates by priority                                                                                                                                                                                           |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_type_concept_id      | CONSTANT | 8     | ``32840``                                                                                                                                                                                                                 |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_status_concept_id    | None     | 9     | —                                                                                                                                                                                                                         |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| stop_reason                    | CONSTANT | 10    | ````                                                                                                                                                                                                                      |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| provider_id                    | FK       | 11    | FK → ``provider_id``                                                                                                                                                                                                      |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| visit_occurrence_id            | FK       | 12    | FK → ``visit_occurrence_id``                                                                                                                                                                                              |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| visit_detail_id                | None     | 13    | —                                                                                                                                                                                                                         |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_source_value         | DERIVED  | 14    | ``VT.concat_fields(first_field=condition_concept_code, second_field=condition_concept_codeSystem)``                                                                                                                       |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_source_concept_id    | None     | 15    | —                                                                                                                                                                                                                         |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_status_source_value  | CONSTANT | 16    | ````                                                                                                                                                                                                                      |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| data_partner_id                | DERIVED  | 20    | ``VT.get_data_partner_id(filename=filename)``                                                                                                                                                                             |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| filename                       | FILENAME | 100   | source XML filename                                                                                                                                                                                                       |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| cfg_name                       | CONSTANT | 101   | ``Condition``                                                                                                                                                                                                             |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_concept_code         | FIELD    |       | ``hl7:value`` @code                                                                                                                                                                                                       |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_concept_codeSystem   | FIELD    |       | ``hl7:value`` @codeSystem                                                                                                                                                                                                 |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_end_date_high        | FIELD    |       | ``hl7:effectiveTime/hl7:high[not(@nullFlavor='UNK')]`` @value [DATE] → priority ('condition_end_date', 1)                                                                                                                 |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_end_datetime_high    | FIELD    |       | ``hl7:effectiveTime/hl7:high[not(@nullFlavor='UNK')]`` @value [DATETIME_HIGH] → priority ('condition_end_datetime', 1)                                                                                                    |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_id_extension         | FIELD    |       | ``hl7:id[not(@nullFlavor="UNK")]`` @extension                                                                                                                                                                             |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_id_root              | FIELD    |       | ``hl7:id[not(@nullFlavor="UNK")]`` @root                                                                                                                                                                                  |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_start_date_low       | FIELD    |       | ``hl7:effectiveTime/hl7:low[not(@nullFlavor="UNK")]`` @value [DATE] → priority ('condition_start_date', 1)                                                                                                                |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_start_date_value     | FIELD    |       | ``hl7:effectiveTime`` @value [DATE] → priority ('condition_start_date', 2)                                                                                                                                                |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_start_datetime_low   | FIELD    |       | ``hl7:effectiveTime/hl7:low[not(@nullFlavor='UNK')]`` @value [DATETIME_LOW] → priority ('condition_start_datetime', 1)                                                                                                    |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| condition_start_datetime_value | FIELD    |       | ``hl7:effectiveTime`` @value [DATETIME_LOW] → priority ('condition_start_datetime', 2)                                                                                                                                    |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| domain_id                      | DERIVED  |       | ``VT.codemap_xwalk_domain_id(concept_code=condition_concept_code, vocabulary_oid=condition_concept_codeSystem)``                                                                                                          |
+--------------------------------+----------+-------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

Config type reference
---------------------

+-------------+----------------------------------------------------------------+
| config_type | Meaning                                                        |
+=============+================================================================+
| ROOT        | Defines the XPath root element for this config                 |
+-------------+----------------------------------------------------------------+
| FIELD       | Extracts an XML attribute value via XPath                      |
+-------------+----------------------------------------------------------------+
| DERIVED     | Computed by a Python function from other fields                |
+-------------+----------------------------------------------------------------+
| HASH        | MD5/hash of a set of fields, used as a surrogate key           |
+-------------+----------------------------------------------------------------+
| FK          | Foreign key copied from a joined dataset                       |
+-------------+----------------------------------------------------------------+
| CONSTANT    | Fixed literal value written to every row                       |
+-------------+----------------------------------------------------------------+
| PRIORITY    | Coalesces the first non-null value from prioritized candidates |
+-------------+----------------------------------------------------------------+
| FILENAME    | The source XML filename                                        |
+-------------+----------------------------------------------------------------+
| None        | Not populated (placeholder)                                    |
+-------------+----------------------------------------------------------------+